Personally I'm not at all interested in "sexy" types of shoes, especially not shoes that have heels a mile high. I understand that many people find them very attractive, and that's just fine. But myself, I don't get it. To me they just look clumsy, uncomfortable and unnecessary. I prefer more practical flats or sneakers.
This isn't very surprising, considering I'm also not especially interested in dresses and skirts. I mean, I've nothing against them, they can look very nice, but for some reason I prefer when a woman wears casual, comfortable clothes, like ordinary pants or jeans. Even a simple T-shirt can work wonders for me. I feel that women don't need to dress up to look great (or even at their best, for that matter). "Sexy" clothes don't add anything for me, and they can even get in the way. Same goes for makeup. Just trying too hard, you know. Down to earth is my thing. It just looks more natural.
While I'm at it, I think the issue of breasts was briefly mentioned as a comparision with the variety in people's tastes in feet, shoes and pretty much everything. Well, personally, I'm not a big breast fan at all. I much prefer more discreet proportions. I don't know, I just think smaller breasts are cute and sexy. Again, my tastes are very down to earth. Oh, and no offence Steph, but they don't necessarily need to be "naked and in front of my face". That's not how I see women.
Back to the shoe thing, I should point out that while I prefer the more down to earth types, I have no interest in the shoes themselves at all. As someone mentioned earlier in the thread, having a foot fetish doesn't mean having a shoe fetish. Two somewhat related but very different things. I like the overall look of a girl wearing casual clothes, including casual shoes. But not the shoes themselves.
As for bare feet compared to socked feet, it depends. In typical, ordinary life situations, I'm just fine with completely covered feet. But if I'm in "foot spotting" mode (which happens from time to time in late spring and summer), it goes without saying that I prefer when girls are barefoot in their shoes/sandals, because otherwise I'd have no chance of seeing their feet.
However, if I were ever lucky enough to have a girlfriend or if I knew I had an opportunity to play with a girl's feet, I think I'd prefer to have her walk around in ordinary shoes/sneakers with socks. Again, it's a matter of casual look, but also of the fun of removing the footwear. That aspect of things is rather important to me. It's the tease of the covered foot and the fun of revealing them. If I had a girlfriend I'd see no need to see her partially barefoot all the time, walking around in open-toed heeled strappies. I'd prefer to keep the surprise for more private moments (though it goes without saying that she'd be free to wear more revealing shoes and walk around barefoot as much as she'd want).
I guess part of why I'm not a big fan of bare feet in sexy shoes (without actually disliking them, you understand) is that if a girl always walks around like that there's no element of surprise, no fantasy, no anticipation. Why look forward to getting the footwear off if the feet are always exposed anyway? Granted, seeing the whole foot and getting to play with it isn't quite the same, but still, it still ruins some of the surprise for me. It's like the idea of women walking around topless. We might like it at first, but after a while wouldn't we get used to it, to the point that actual sex would lose some of its flavor? Actually, I have no idea how we would feel about it, but I assume it wouldn't be quite the same.
Anyway, please understand that these are all just my personal preferences. I know that not all people feel like me, with many people being big fans of revealing high-heeled shoes, sexy dresses and the like. And that's just fine. To each his/her own. I just wanted to support the reality that not everyone prefers the "sexy" approach, since a few people seem to take it for granted for some reason. Not that I can blame them for thinking that all guys (and some gals) prefer women in super-sexy mode, considering the artificial image of the typical desirable woman (or man, for that matter) vehiculated by the media. It definitely can make you think that all people have the same tastes, even if it's not true at all.