I have a ps3, wii and a wiiU. I'm selling the ps3 to get the ps4. I have never like microsoft. Will never get an xbox...can't stand them. Nintendo is more family games and the rest are more rpgs, mmorpgs
In my opinion it's all about what you like to play. If you like shooters, the Xbox is the no-brainer with so many good ones as exclusives. I'm not a fan of shooters so I like the PS4 (which is what I assume you meant, not PS3) since it has a better chance of getting good RPG and adventure exclusives.