Jen - they're en route! I'll definitely post after I've used them a few times and give an expert review.
Alenna - the Phillips are the ones I have now. They do OK as in they don't fall out of my ears, but once the sweat gets going, they do slip somewhat so I lose the decent sound. And it's just annoying to have to take them out, wipe my ear, wipe the earbud, stick them back in, and try not to fall on the treadmill while doing that! Maybe I'm just too picky - I don't know anyone else IRL who has such issues!
Resolute - I really don't like over the ear phones, though I'm sure they would resolve the slipping out of the ear issue! I am constantly shoving my hair back from my face, so a headband-type set of phones would bother me as I can't get my hair back (it's not long enough to put up or tie back). Plus there's the sweat factor - the bigger earphones, I imagine, would get nasty with all the sweat collecting under them. Like I said, though, I may just be far too picky and difficult for my own damn good!