Falco looks like a mother fucking chick. and everyone else just...they're gay as hell Krystal is cool and Fox is coo, but Fox is cheesy, on the list I ahve to give is to Krystal, but I think it really goes to Fox's pop who was in the 64 version which is still the best one to date.
It's a close race between falco and fox, but I'd have to go with fox. He rates higher on the overall coolness meter than falco does. But I'm talking about the cool versions of the characters, say, the ones from either n64 or ssb:m. In the new one, fox looks like a wierd puppy with a really tall head, falco looks WAAAAAAAY out of proportion (I know they're animal-humans but seriously. His head is a basketball and his body is a toothpick), krystal never looked good, slippy....no comment. Peppy looks like an idiot, rob is ok but he's a robot and that's not hard to do. Pepper looks alright. Also their poses are just...not right somehow.
Hmm, let me see.....Fox is cool, but he loses it around Krystal, Krystal is weird, Slippy is the most annyoing thing to ever happen to Starfox, Peppy is old, Rob is gay, Pepper is UGLY, so I would have to go with Falco ^_^
I believe in the manual for the SNES Starfox, they clearly said Slippy was male. His high-pitched voice could be because he's going through puberty (for 4 or 5 games straight), or because all frogs sound like that in the Lylat system. I haven't seen any other frogs, so we can't really compare him to something.