>>26775666Machamp
HP: 90 (+20) -> 110
Atk: 130 (+20) -> 150
Def: 80
Sp Atk: 65 (-20) -> 45
Sp Def: 85
Speed: 55
BST: 505 (+20) -> 525
Conkeldurr
HP: 105
Atk: 140
Def: 95 (+20) -> 115
Sp Atk: 55
Sp Def: 65
Speed: 45
BST: 505 (+20) -> 525
Conkeldurr remains to have superior physical defense and faster in Trick Room. He retains Drain Punch and Mach Punch, both of which are still denied to Machamp, but Machamp now boasts a much higher attack and just a little bit more HP for a little more survivability.
Machamp is for all-out action while Conkeldurr is for longevity and defensive play.