Dance, baby!
Day 27: Your favorite dance battle
Suju's performances are always the best. What I like the most is that (for them, unlike the rest of the groups) it's not about acting sexy/cool/whatever. Their performances reflect exactly who they are, that amazing group of talented and funny guys we love so much.
Some examples: here and here.
SNSD also has some interesting performances and I always liked their MJ obsession. My favorite is this one.
By the way, I haven't seen DBSK in a dance battle, but I'm sure they would own every single one of them, just like Yunho did here.
[ List of questions]