What should i do for my PS3 and 360?

Ok so i JUST got my PS3 in the mail today, now i have the PS3 and 360. I love both and all but like what type of games should i get for each system. I know COD will be 360 simply for better online and early access to DLC. Besides that what type of game should i get for each system. Im thinking sports for PS3, shooters for 360 (think FPS are smoother on 360), racing on PS3. What do you guys think work best on each console. I dont want to get games for just one system. Also should i get rid of my Xbox 360? The only exclusive i like for the 360 is Gears Of War. I mean should i get rid of my 360 and just stock up on my PS3 as i already know im going to use that more as i think the exclusives are WAY better for PS3 i love shooters and PS3 has Killzone, MAG, Metal Gear Solid and God Of War. I dont like the kinect, i sold my kinect 6 months after i go it as i NEVER used it. Would it be smart to get rid of my 360 or should i just keep it?