Hmm, I wouldn't recommend any of her books without caveats, but I think the two I enjoyed the most upon discovery (back in high school) were Singer from the Sea and... Family Tree? (Raising the Stones is the one I read most recently, and while the religiony bits in there are somewhat interesting, the, um, gendered stuff- among other things- will probably make you want to bang your head against a wall.)

[eta] ... actually there are now a lot of things in her books that make me want to bang my head against a wall these days, so, y'know. Only take those suggestions if you're feeling up to dealing with her particular brands of whatever! :P