Anderton
Another difference is that Cubase supports MIDI FX, Studio One Professional does not. 

 
Craig:  Is that deficiency cured by the dxi wrapper you wrote about elsewhere, which includes a mfx wrapper as well?
 
Steve

Studio One For Me. I've been playing with the demo for about 2 or 3 days, and feel like I could do all my session and mix work right now if I needed to. My guess is that within just a couple weeks I'll be as fluid on it as I am with sonar. I'm buying the Cross grade tomorrow.

Not to be a d**k and mention something at a sensitive time... I had already departed Splat world for more accommodating pastures in the last year.  Tried very hard to convert to Reaper (and still admire it) but it was not conducive to my workflow.  I ended up giving Studio One 3 Pro a try and fell in love.  Reason one: stability.  I just got the sense that there was bloat behind Splat that seemed to... cause problems.  None of that in SO3P.  In a year of working with SO3P, not one crash.  I would be lucky to go a day in Splat without a crash.
 
I will admit, the editor takes some time to get used to (paradigm shift and all that) but that's a brain/muscle memory thing. I have embraced the instrument track and now prefer it.  There are lots of other features I really like but this response is merely an affirmative, boolean nod to SO3P.

Here is one legacy for me.  There will forever be a "C:\Program Files\Cakewalk\Vstplugins\" folder on my DAW machine.  Too much stuff pointing there.

Cubase is looking the same for me as you said. Maybe I'm wrong but I get the impression that Studio One was designed for their live consoles which would explain the lack of midi. For me  I need something that was designed for studio recording and not the other way around. I was looking at their consoles and saw their DAW. The Yamaha TF series support Cubase should I desire automation. This is like a sudden death where you have to make arrangements  immediately. I was not thinking of dumping my DAW. I hope I have the time to get the crossgrades to my decision. I'm not going to purchase a DAW  just to get a deal. I still have my computer and my Native Inst, IK.. all work standalone. I have a Tascam 24trk DP24 and can easily import my instruments in like I did in 8 track analog days if need be. 

SMcNamara

Anderton
Another difference is that Cubase supports MIDI FX, Studio One Professional does not. 

 
Craig:  Is that deficiency cured by the dxi wrapper you wrote about elsewhere, which includes a mfx wrapper as well?
 
Steve

No, because there's no place in SOP to insert MFX.

Studio One?, No sysex or custom GUIs, I couldn't remove it fast enough..... 
Cubase? - hardware dongle - forget that for a joke!....
Mixcraft?  - that's ok if all you want is a glorified tape machine....

I am staying with Sonar Platinum 2017.10 Build 14 until it or I die.....  Anything else, and I will miss all those nice Sonar features.

Cubase is one of the most mature around and has really deep features for pro's .....
 
Studio one is the most "reactive" when it comes to developpement , some stuff are just beautyfully excuted , some other stuff missing are just imbelievable  .... but for me it's the one i spend the most time here , i 'm good in mixbuss , master sonar , good at live , protools , and studio one  ....i will take the time to work real work to judge .... but so far the transition between sonar and S1 is smooth , regular stuff are intuitive , exotic option are easy once you get he concept , and the project management is the ice on the cake (i don't know if it's the right way to say it ;))
 
of course sonar isn't dead , and it's up to everybody to handle the maintenance of their system so they can use it for a long time ..but for me , having done the mixing in sonar , and mastering as i write in studio one , i started to think i should have mixxed in studio one to get the "link done" between songs and projects in case of modification ....

promidi
Studio One?, No sysex or custom GUIs, I couldn't remove it fast enough..... 
Cubase? - hardware dongle - forget that for a joke!....
Mixcraft?  - that's ok if all you want is a glorified tape machine....

I am staying with Sonar Platinum 2017.10 Build 14 until it or I die.....  Anything else, and I will miss all those nice Sonar features.

Yeah this ^^^^ is what I tend to agree with after mucking about with demos all day! If we cna get a "permanent" activation should those servers get turned off... then the currnet version of Splat will do me for many years I'd think.

Looks like we discussing the same thing in different threads. Here is my thread on KVRaudio.com on this topic. Everybody should join KVR. Great community for keyboard and software synths based musicians. https://www.kvraudio.com/forum/viewtopic.php?f=7&t=495072
 
I remember in early 2000s, Emagic released their last update for Logic- 5.5 and announced that they discontinue Windows development. The update was $150. I bought it thinking- they fixed ALL the bugs and got newest features- it should last for couple years. It did. But in couple of years it looked very outdated, I started getting more and more errors and crashes and all kind of minor issues. I built new computer and installed Sonar 4. I remember this feeling of reading about new versions of all other software and see your DAW slowly dying and becoming buggy and developing issues. I will keep Sonar for my old projects but I am moving forward now. 
 
I bought Cubase crossgrade at $255. I spent one evening and one full day with it. I like it. It does not look old. It looks old on demo videos, but now when you open it on dual 43" monitors. It looks gorgeous. The audio clips have transparency and it makes them look like they made of glass. I have issue with only 16 colors, but you can customize the brightness of tracks and adjust individual colors, but then you have to choose one of 16 slots for it.
 
Every new project requires set up of audio inputs and outputs, then you get to save it as a preset, but it does not stay set if you start new project- you still have to load preset. This is irritating. 
 
They have tabs for everything and fader with Meter hiding in one of the tabs, so it is not visible on the left like with Sonar unless you open that specific tab that gets closed randomly. But there is HUGE master meter on the right- I mean super big and colorful. 
 
Melodyne is working. I tested it. You have to insert it as plugin and then Play the vocal track, and it records it- kind of weird. It opens as empty window first- you have to play the whole track. But then it works. Also I upgraded my Melodyne to Editor- it is not basic version that came with Sonar. 
 
I seriously missing the ability to record sounds comming from Software synth as audio. In Sonar, all it took was to select Record on Instrument Audio track. I like to insert separate Audio and MIDI tracks for softsynth. Looks like in Cubase only single track can be selected. You can route extra MIDI track to it. But to record Audio from software synth, some Fantom track has to be created and routed to master- I have to read again what they were explaining to me.
 
I get a feeling that all the new features that we got recently in Sonar were to keep up with Cubase, because most of it was already implemented. I like the Piano Roll in Cubase better. It has dark background. You can draw the notes. You can insert set length notes. You can select any notes. I did not discover how to enter note length by typing it in yet- hope it is available. I also dont know if it has that new feature of multitrack window. 
 
Will be learning more. Helpful community. 
 
 
 
 
 

Cubas is just soooo damn expensive for a cross-grade. Especially as many folks here (if not most) have spent many hundreds of dollars...I'm sure Steinberg are doing well enough to offer a really special price to full SPLAT owners, but nothing is forthcoming.