I don't mind the Wincest, though I tend to prefer gen or het. But yes, there's a lot of very good stuff out there that's not Wincestuous.

Maygra (maygra_fic has both gen and slash: http://wordsmiths.net/Maygra/

big_pink is very well-known in the fandom and her stuff is mostly gen.

crack_impala does a daily listing by genre, and lists Gen and Het separately from the rest. Their rec's are varied, but at least then you can avoid Wincest.