Basically a muddy haze of action, horror, and fightan' games. Not to say that any of those aren't fun. They just have details that are easy for people to harp on.
DMC? New design.
Resident Evil? Combat spinoff from minigame with no saves
MvC3? No "actual" Mega Man; also DLC and UMvC3 shenanigans which aren't that bad
SFxT? I've heard issues about balance and whatnot; also Fat Mega Man (which I thought was awesome btw) and more DLC shenanigans
Dragon's Dogma? Derivative.
None of these are actually terrible games. The more we realize that, the less alienating we'll be as disgruntled Mega Man fans. The fact is that, yeah, we got screwed over, it was a low blow, it wasn't fair, and Capcom should make amends. But our problem is the majority of Mega Man fans have been taking it out on anything and everything Capcom has been doing on what seems like the barest or most irrelevant of grounds, and so people are not taking us seriously. Worse yet, they've lost all sympathy for what happened with Legends 3. They just go into "Legends is [parasitic bomb]" and "It's the fan's fault" mode and brush it aside like it means nothing--which is true for them. It doesn't mean anything. Just another bunch of whiny fans that need to shut up and will be ignored.
Complaining is fine, but only if it stays on point. We're angry at Capcom for cancelling Legends 3 & the Prototype. That's it. And we're a little insulted by the MMX iOS and Rockman Xover offerings as of yet, and at the ridiculously expensive E-can soundtrack compilation, but if they bring in more money and more fans, fine. Let Capcom separate some cash to their mobile departments to make those games happen. But we're going to let you know we think it's [parasitic bomb] and we want better from them. Jim Sterling is right: threatening boycotts sends the wrong message and punishes developers, not the publisher. Buy what you want and don't go into crusader mode making other people feel bad about buying games they like or they want. That'll just make you look like a bit of an ass if you can't back it up with good reasons they'd listen to.
Hell, if I decide to get an iPhone. I'll put money down for both MMX iOS and Rockman Xover just so I can [sonic slicer] about how shitty it is, and show everyone else how much it sucks and why. I might even be fair to the game and point out it's good parts. How about that?