You haven't played ME2? It isn't anything like KOTOR, or ME1. You can get it on console, and can play it without having played the first installment.
It isn't even an RPG. At least, not in the traditional mechanical sense. Your character has upgradable skills that affect combat a great deal, but there are no character points (strength, dexterity etc.), and it is all a quite linear affair.
For me, it is a third person shooter with more OMG THAT WAS SO FUCKING AWESOME, I CAN'T BELIEVE THAT HAPPENED moments, than most games in recent memory combined. And that's just stuff involving you the gamer, doing the shooting. These great moments are scripted only enough to feel like grand orgasmic set pieces, yet give you enough control to let you feel like you are the one in charge.
The MW games have some fantastic moments, but they feel heavily scripted. This isn't like that.
And I haven't even mentioned the story telling, and the production values. Both are a giant leap ahead of anything I've ever seen in a game. As a film buff, I can safely say that they are good enough to rival some fine science fiction movies. I doubt I could say that about many other games.
This is one of the few games which I can show to friends who are fans of cinema, and can have them appreciate the narrative at an artistic level.
In a more fair universe, ME2 would be outselling games like Halo and CoD easily. I don't mind Halo, but it is a pity that that universe is taken by non gamers to be the standard of science fiction in video games.