Havoc does have one that looks happier - he's laughing and stuff in it. But that's reserved more for when he's making an idiot of himself than when he's actually at his happiest, so.
4)Saddest
5)Angriest
Sano has a lot of angry icons and plenty that do look angrier. But I picked that one since he'll only use it when he's seriously considering fucking your shit up. The others are good for angry/annoyed flailing or just talking about things that piss him off, so I didn't consider them.
6)Cutest
7)Sexiest
NONE FOR AL
fuk u al is not sexy. DDD:
8)Funniest
Violence is funny. |D
9)OTP
NONE FOR AL AGAIN
Havoc's cigarettes + Mustang's flame = tru luv.
10) Bonus! Stolen from Tomo 'cause I totally have icons just like that too! 8D These are the icons that are totally reserved for use only on people they genuinely care for.
Sano's 'gentle' icon could work for this too, but he could easily use it talking about someone important to him even if he doesn't like the person he's talking to. I think so far only Ueki and Yoruichi have gotten this icon from him. D: Yoruichiiii