I got a record of 203 in the Platinum Battle Hall with this pokemon:
Garchomp (M) @ Yache Berry / Focus Sash
Trait: Sand Veil
EVs: 4 HP / 252 Atk / 252 Spe
IVs: 31 across the board
Jolly Nature (+Spd, -SAtk)
- Stone Edge
- Fire Fang
Basically a simple Garchomp. I never actually used Stone Miss, even on the mons that were 4x weak to it, because I didn't want Stone Miss to, well, miss. I survived numurous close calls before finally losing at the hands of a Slowbro. Having beaten Slowbro previously on my streak, I thought this would be an easy win. I started off with Outrage, which did about 55%, however, this Slowbro had one thing the other had not, a Sitrus Berry. So yeah, the Sitrus Berry made me lose the match, as Slowbro easily took Chomp out with Ice Beam + Psychic. Couldn't 2HKO thanks to that retarded berry.
I will update with a photo once I get my hands on a camera.