Skarner on Twisted Treeline
His zones overlap. Let that sink in, the zones in the middle jungle have about a 1/4 inch of overlap. They cover probably half the map total if he has all of them. Skarner is already too strong, Riot has said that he is too strong and they they aren't even going to wait for a patch to nerf him, yet he just went on free week and he HASN'T been nerfed yet.
For when he does get nerfed I sincerely hope they nerf the radius on Twisted Treeline because quite frankly it is way too large for that map.
and I too find this champion, in this map mode, way to overpowered. You are correct with his zones being closer than they should be and hopefully with the new nerfs incoming, he will be a choice you actually have to think about, rather than just picking him into every situation as the "OP" choice. His win rate is now the highest in LoL and I think with that being said....Nerfs needed. JMO