Kharloth said:
Both are mediocre, the only reason their big is because your average person is an idiot and loves nothing more than generic shooters.
My vote goes to bioware and valve.
Oh the irony...
Any-who, as other people have already posted this thread is pretty much worthless - if the question had been "Which do you subjectively prefer", it might have had a small amount of credibility - but even then the question is pointless as you're just asking whom others believe are better; and others may not have played the majority of both companies games, seen the variety of fan-interactivity they both give - it's a pointless question because there are so many factors involved in giving an answer - that and who honestly cares?
I ask that rhetorical question because you shouldn't need to know other peoples opinions - it's yours that should matter to yourself and no-one else. Of course you may just be trolling (as the Zero Punctuation avatar, low post count and terrible grammar indicate the type of person that may do such a thing) in a pathetic attempt to produce poorly thought-out discussion - but that's a different type of beast all together.