Good question - I'm not personally overly enamoured with any of the offerings currently out there (of the ones that are reaonably easy to get hold of anyway). The RAFM (if you can find it) is old and meh, the Fenris is great, but huge (made for Cthulhu Wars), so it doesn't look right. My favourite is the ex-AEWWII (now Blackball Games) one, but it's a royal pain to get hold of (if you're in the US it'd be easier).
There is the Pathfinder one, (from the Dungeons' Deep range) which, though a pre-paint, and a little big, is acceptable, and quite cheap to boot ($4.50). I've seen the odd KS one, and a few in some small ranges, but frankly no really decent 28mm version - anyone out there fancy a go at designing one? (esp. if you've got a 3D resin printer).
Hope that's of some help (and not too gloomy).