Well, for me, regardless of the fact that I love both Nintendo's and Sony's 1st and 2nd party offerings (don't own X360), Bioware is owning this generation, followed closely by Rockstar.This idea of mine must be conditionated by the fact that I only started playing their games in the last couple of years.

I know this is a subjective and therefore polemic issue. You might not even like the options in my poll at all. That's exactly the reason why I ask you to share your mind about this.

I'm all eyes.

I would say Nintendo's internal dev studios.  This gen the've made the best selling game of all time, the 2nd and 3rd highest rated games of all time on Gamerankings and 4 perfect scores from Famitsu.

Quality is subjective, but from the sales and critical reception points of view, Nintendo is the answer

Those are heavy evidences there

You can't forget that Nintendo has also heavily influenced how videogames are played and/or viewed far more than any of the other developers

Well hmmm which developers have been leading the industry since the 80's? Ummmmm....huhhhh...maybe......

Nintendo Duh, their hasn't been a generation to date where I didn't think Nintendo was making worse games then any other group of developers on Earth. Now this poll is alittle unfair as Nintendo has alot of developers and putting them all as one against other developers isn't really a fare fight.

I think you should have made the thread about publishers instead that would have made more sense. If your talking individual developers I think Bungie has performed the best this generation, with Infinity Ward at number two. Number three I'd give to Retro or Nintendo EAD Tokyo as both have done great jobs.