What WP theme do you use and would suggest to get the best CTR, any live samples would be great.

I tried WikiWP, a theme that looks like a wikipedia .. it had ok CTR but I need more % .. I'm using Quadro2 theme now, a bit changed, you can see it here Sample, Have changed links to blue, also placed them next to an image so it looks like IMAGE | AD .. I think it brings more CTR .. but still, I need better ctr, its around 3%-6% now .. thats way below what I wanted.. any help or samples what to do, I know a lot of Adsense gurus are here and could point me/us in right direction, thanks!