Which One Is Better And Why?
Which One Should I Get && Will I Get More Usage Out Of ( Remember I'm Just 14 )?x

My One Line Suggeestion Is

JUST GET Samsung Omnia

IT S The Best
One

Than HTC................

HTC Touch Pro. Don't choose the HTC Touch Diamond because it doesn't have memory card slot, QWERTY keypad, only 192 Mb RAM, and poor battery. HTC Touch Pro has all the HTC Touch Diamond + QWERTY keypad, 1340 mAh battery, microSDHC slot, and 288 Mb RAM.

Samsung Omnia has 1440 mAh battery and 5 MP camera but it only get 240 x 400 pixels screen, no stylus slot, and no enough RAM (128 Mb RAM too slow).

See here for HTC Touch Pro and Samsung Omnia specification and comparison
http://www.gsmarena.com/compare.php3?idPhone2=2422&idPhone1=2413