I'm amazed that I find Pro Tools 11 such a more pleasant experience that the others here. I wonder what it is about my way of working differs in such a way that PT fits for me. It surely wasn't a deal where I walked out and slammed the door behind me. I journeyed through Reaper, Samplitude Pro X and Studio One along the way. They are all fine products along with SONAR.
I also agree about the proprietary products to an extent but in some ways ProChannel is proprietary. As I was working my way through many hosts, it would frustrate me that what I got used to working with in one product was lost when I moved into another environment. So as of a couple of years ago, I stopped collecting VST plugins in a willy-nilly manner and started relying on a select group of developers (Waves, Toontrack, Universal Audio, Slate Digital, Korg). These products I could use in any host I chose to use. The majority of them have already ported their entire line into PT formats or are in process or nearly done. None of these updates have cost me a penny.
Some of the work flow is very similar to every other DAW program I have and some of it like outputs, aux busses and general routing is very different. Because I have 16 ins and outs, I have already taken advantage of some of the benefits this routing offers.
I started to do a project in X3 a few weeks ago but I immediately ran into where I wanted to start the project with a couple of negative numbered bars so that the rhythm charts I wrote out would have their measure numbers correspond with the bar numbers on the timeline. That and having to scroll the sends in the Console view to see more than two sends sent me scrambling back to PT.
Anyway, to each his own. I've got SONAR X3 and if someone wants to bring a project that's already been started in SONAR, I can work in that environment as well.