I always found Malon (the adult version of course, I mean who the hell do you think I am?) to be quite attractive. Perhaps it's the hair... or something, idk.
Nabooru as well. I've always thought she was pretty cute.
Oh, and lest we forget Midna (in her true beautiful princessy form), who is actually straight up sexy.
And then there are girls like Zelda (SS), Saria (I know she's like 10, but still...), Ruto (I know she's a fish, but come on, she's p. hot), etc.
Also, call me crazy, but I actually find Telma to be fairly attractive too. Not sure why though. Perhaps it's the braids... or something else. There's just something about her that I love!
Honourable mention goes to: