Garchomps are amazing pokemon. I think the one I have in Platinum has anger issues though. I used him against Volkner at 44, and I was worried he wouldn't deal as much damage as the rest of my guys. He then proceeds to OHKO everything in the gym aside from Volkner's Electivire (I didn't use him against it, I swapped to my own Electivire to handle that). I then named him Sledge, since he tears everything apart in one good smash.
Great work. I myself use more Gyarados and Noctowl. "Noctowl lets go to Sunyshore city things are waiting us on victory road" flies to city surfing with Gyarados towards pokemon league gets splashed water on face by mespirit "Didn't I said to you once already get lost!" Mespirit runs away "Better" I say and travel continues.