Hey there Dana! So much to like in Sonar, I'd recommend it (indeed have done). Really like their attitude to upgrades too, best in class of any developer imo. I guess we all have things that we can't live without though... I use PT for audio post, but could never have considered it for music use because the track name reduced to 5 characters on a narrowest view. For most people that's an irritation I guess, for me it was beyond the pale - just couldn't get over it.
One area where Cubase is best in class is in track names and heights. It's a marvel of design that something as narrow as their tracks can be so clear and practical, its very hard to give that up. With CC / EuCon, I'd need a really solid non-tablet based automated / named midi CC solution aside from the Artist to leave Cubase, and thus far I haven't found one. So I'm kinda stuck there for now it seems - not especially happy, but that's life.
Speaking of which, still waiting for my dream semi-weighted...