When I hold the PS3 Controller, my hands feel weird compared to when I hold the xbox 360 controller. and my hands arent that big but it feels more comfortable on the xbox 360 controller.

you probably play on the xbox 360 more than you play on the PS3 so that's why you are not used to holding the PS3 controller. When i had a PS2 and my cousin had a Xbox i used to play on my OS2 more obviously and when i went to my cousins house and played on the Xbox, the controller felt weird because i wasn't used to it. now i have a 360 and im used to the 360 controller and holding a PS3 controller feels weird=) you need to spend equal amount of time on both systems.

well to hold the ps3 CONTROLLER correctly you must spin around 3 times. then jump up and down 2 times on a wednesday. after this you must finally throw your Controller in the air and catch it in your ear. After this it will feel fine to hold the ps3 controller