There's a lot of wings out there:
Basically the highest quality, with morphs for different bird/flying types, the ability to fold, and generally easy to morph:
Feathered Wings by etujedi
Textures by RawArt

The more modern wings by Sharkey:
Ultimate Wings
Textures by Arki - check these out before turning down the Ultimate Wings, as I think the promo pics show more potential to be what you want than those of the original product

Smaller, wider wings
Goth Cherub Wings

Another Choice - interesting shape
Mythic Wings

I will say that unfortunately, the nicest, fluffiest wings i've seen in the galleries (at artzone, actually) used the Feathered Wings textures by Arki for the Winter Queen wings. they were basically the main reason i preordered.