PPCGeeks - Diamond or TP

Ok, so i have a touch right now and have a connection at the local alltel store that is going to warranty it out for either a Diamond or TP whatever I would like, problem is i've been reading around and am having a hard time deciding. My wife has the TP and has had nothing but problems with her wi-fi, bluetooth and now the keyboard has stopped working. I would like the physical keyboard but need a phone that can stand up to a little more punishment(i.e. my touch has been a great phone for the past 2 years but is completely beat up and needs replaced).

Any opinios on what phone is better.....mainly used for internet surfing, some texting, email and about 4-7 hours a day talking on the phone. Also if one has better reception than the other, alot of driving through grey zones.