Better System: PS3 or Xbox 360?

I have both the PS3 and a Xbox 360. I got a PS3 because my Xbox 360 broke and then I was going to sell my Xbox 360. I decided that I want to keep both. I have not been impressed with PS3 at all. Everybody says to keep it because good games will come out. Haze, Lair and Heavenly Sword were all stupid. Should I sell PS3 or keep them both? Don't bring Blu-ray and DVD into the discussion.