i dont care for nightcrawlers teleporting with body parts ability, i dont consider it one of his abilities since its been in only two comics i've seen, one being in an alternate reality and the other being in that rogue comic, beast takes this one imo, he's got superior strength and he's the master of agility
btw in that rogue comic did she also take colossus' ability too? because i remember colossus being the only x-man rogue can touch without taking his ability
Rogue took the powers of Colossus before. During an encounter with Nimrod, Rogue took the powers of Nightcrawler and Colossus (and Shadowcat) in order to withstand the strain of taking only parts of an object's body (in this case Nimrod) via teleportation.
As to the battle between Nightcrawler and Beast, during one of his first encounters, Nightcrawler once lamented on how fast Beast was to him. Teleporting fraction of body parts may not be a factor here, since it has strained Nightcrawler terribly in the past (unless he's going to teleport a pinky). I can see Beast winning this fight.
i give this one to nightcrawler. I mean, all he reall has to do is teleport best EXTREMELY high up (which he has proven he can do with little strain on his body), then just drop him and teleport himself to safety. If they were in the danger room or something, that might be different (the he could still teleport out of the place), but if it is in pretty much any other arena, that should work well enough.