Which top or jungle champs are viable, but you don't see much of? I have syndra for mid, and draven for bot, now I'm looking for a less common, aggressive top laner. Suggestions?

Ap skarner top. 'Nuff said.

Trundle Jungle. No love, no one plays him, very few even own him. But his clear time, his ganks, and especially his counterjungling are just so good.

Volibear. Epic passive, health scaling on a tank, and his only real downside is his lack of a hard gapcloser.

Elise is a really good top, so is Cho in certain situations. cho destroys casters of any sort and has wonderous sustain, while elise is pretty good in most situations if you know how to build her. kah used to make a good top but i dunno how he will do with these nerfs.. rengar may get some new viability, noc is good for aggressive play. ive seen ad shaco destroy top, nautilus does well everynow and then, vlad is also a really good counter for most tops. just to name a few haha.

riven or elise imho.

Im really not knowledged in many top champs, but the one Ive been playing lately is Elise, definatly a challenge, but works wonders in the right hands. Recommend to play her in a couple of AI matches first tho.