this isn't even a comparison. Wine Snob is in a totally different category that iTasteWine. iTasteWine is one of the ##!$%!$ wine apps up there trying to look respectable by charging a substantial price.
I have been using Wine Snob for a few months. speed wise, looks wise, and useful wise it crushes iTasteWine. i can enter in wines in under a minute. plus iTasteWine barely works for me. would be nice if wine snob had more features of course, but it does a lot already.