Which of their studios? Sony itself isn't a developer! Unless you mean all of their studios combined of course. 

OT: I like some of them. Specially the Crash Bandicoot games. I really liked those!

yup most..

I meant publisher. 

okay, done screwing with poll, i'll leave it :p

It's a mixed bag for me, some I love others I couldn't care for but for the ones I don't like, the 3rd party exclusives make up for that.

I like a couple, God of War mostly.

Quite a few actually.

Naturally, I haven't played 9 out of 10 of that list and didn't know half of it even existed, but still I have a fairly large amount of Sony first-party games and like pretty much all of those. Some I'd even consider some of the best games ever made.

Very few, I like the 3rd party exclusives on PlayStation.

Yeah! (Most of them at least)

ok these are the games I have AT LEAST liked.  Now I loved some of them and some of them I just kinda enjoyed but they at least provided some entertainment for at least one playthrough.

So it turns out Sony's best years for me have been PS3 in the twilight years.  2009-2013 have created some of my fondest gaming memories.  Hopefully 2014 will be just as amazing with Infamous, the Order, Uncharted, and unannounced games being published by Sony!  (didn't remember what indies were published by them and they said 20 first party developed exclusives in the first year for PS4 so I'm expecting more).