When choosing, consider the quantity and quality of games.  Especially risk and originality.  Don't just vote for the one that made your favorite game.  Let's see who wins shall we?

Im voting for capcom.  Not my favorite publisher, but I like their style.  They created so many franchises it's absurd.  Ghosts n goblins, street fighter, mega man, res evil, dragons dogma...  And the list goes on.  I like their style of games.  Second place would be ubisoft. They are kicked as this last decade.

Where's the poll? My favorite 3rd party publisher is Square Enix. 

I'd say Ubisoft is definitely my favorite at the moment.

Take Two, i guess.

If I could include SEGA before it went 3rd party then SEGA, but SEGA has pretty much sucked for a while after going 3rd party so I'm going to go with


SquareEnix. Maybe not now, but their history is the greatest.

Just got a few questions I need answered before I vote.

Do I need to take quantity into account? If a publisher makes 1 amazing game and another makes 52 below average games, I'd still vote for the publisher who made the 1 amazing game.

Also, If I don't vote for the one who made my favorite games, how am I supported to make my choice?

Difficult, but I voted Take Two.

EA is not even on the list. So do we vote for the second best.

I don't know about all time as that seems too long of a time but Take Two Interactive usually brings quality stuff. 

No Atlus? Well Konami I guess.

It's a mixture. Try to take all things into account and be unbiased.  That's the whole idea ;)