Many vagina's are very attractive.
Many vagina's are very unattractive.
And the greatest number of vagina's are just that, vagina's.
Looks are only important if you can't get past how drop-dead-ugly someones vagina is.
I have yet to see a vagina (well, maybe one I saw in a porno once) that I would not put my tongue/penis on/in.
Cleanliness is the most important factor, as it determines taste and smell and the majority of appearance.