The same thing happened with me, I have tried literally every ENB that is publicly released, but I still am not satisfied completely with the look. The ones that look best in my opinion are old world and dynamo. I like to tweak the files a little to enhance the look, and that has definitely made them look a lot better.
Old world ENB-Nevada Skies URWL-realism ENB grass file (fallout 3)
Dynamo ENB (orange palette, default sweetfx)-Nevada Skies-Realism grass
- Screenshots (lots of pics):
It really depends on how you want your game to feel, but those are my suggestions. I'm also going to try mixing them to get a look like dragbody's game.
--- Overgrowth ENB
--- TRU ENB
--- Wanderer's ENBFlickr