Teh RR Martin

Just finished A feast for crows. Waiting for the 5th book to A Song of Fire and Ice.
Anyone recommend me some good fantasy content?
Looking for mature content, aka no tad williams.

Terry Goodkind, TH White (once and future king), and King's Dark Tower are great.  But really I dont see whats so great about ASoFaI, I read A Game of Thrones and it was kinda meh.  But everybodys always nutting all over the series so I guess Ill keep with it for a while :/