Ultimate is more balanced. So probably Ultimate.
Yes.
you can only unlock him in ultimate marvel vs capcom 3
No
There isn't going to be any DLC for Marvel vs Capcom 3. They are releasing a new game full of new content called "Ultimate" Marvel vs Capcom 3
In terms of characters, maybe For game modes and online play, No
Rocket Raccoon is not available in the vanilla Marvel vs. Capcom 3- he was one of the 12 characters added into Ultimate Marvel vs. Capcom 3, requiring a separate game purchase.
No i use Capcom and Marvel for my team
In my opinion, Marvel vs Capcom 3 is better.
Yes, she is available for download via the PSN Network or Xbox 350 Marketplace for Marvel vs Capcom 3 in her battle-suit armor from Resident Evil 5. She will be free in Ultimate Marvel vs Capcom 3.
yes technically
QCB two attack buttons
Capcom has not announced a Wii U version of Marvel vs. Capcom 3. The only fighting game currently out on the Wii U is Tekken Tag Tournament 2: Wii U Edition.