I will start by saying I STRONGLY hate the entire series. I have given them all more than a fair chance however.

User Rating: 1 | Marvel vs. Capcom 3: Fate of Two Worlds X360
I have played every MvC game to date, given them time to grow on me, try to find something I can enjoy about it, honestly, other than the interesting roster, I have never been more dissatisfied with a fighting game series ever. I absolutely love fighting games and play all of mine on a regular basis, my favorites being SSFIV, Tekken 6, soul calibur 4, and SF2 hd remix. All those games have a fantastic glow and feeling to them that makes me absolutely love them. The combat of MvC3 is just stale and unrewarding, the series has always been about setting up cluster f*** specials with your opponent in the corner. Sure, you can do flashy combos involving tag outs to your partners and other cool looking moves, but it just lacks what makes all those other fighters good. There is no urge to improve at such shallow gameplay dynamics, no drive to compete at a higher level and keep playing. Ultimately, the series, especially the third incarnation, have a terribly low skillcap.