Mash wins, yet he didn't right a long and well thought out answer. Why? Well, without Extremespeed, Dragonite is still slow enough to be revenge killed by Jolteon and such, and faces the danger of Ice Shard. Course, Flygon does too, but it doesn't want to stay in and attempt a sweep, just hit and run. And unless you pack Fire Blast, or you somehow get 3 or so dances with a Fire Punch, Skarm easily walls you and blows you away. Also, STAB EQ wrecks, while Dragonite's Flying doesn't really add anything offensively. Yes, I'm being biased when choosing my answer, but I'm going to go with what makes sense to me. And, as Doc said, if Flygon gets DD, Dragonite will be surpassed by far. Also, I'm tired of people thinking OMG Dragonite! when chosing a replacement for Mence, low speed and lack of Intimidate makes thinking on an entirely different spectrum.