This would make an awesome subject for an animated video to post on youtube. I stopped reading Potter after book 4, so I don't know about Dumbledore. I have a feeling it would be Yoda, because he does everything effortlessly--there is no try, only do. Just his telekinetic powers alone are enormous. I never felt like Gandalf ever showed what he could really do if he were in an all out situation. He did defeat the Balrog, though. That took some skill.