Well, there is a 3rd party book which uses a 7th appearance stat, which I've only ever had to look at in relation to this very issue. The Book of Erotic Fantasy doesn't have much suited to MW, but it does clarify how an appearance stat works.
It makes disguise an appearance skill, and makes bluff, Gather Info, and Intimidate vary according to the method used (so a stunningly beautiful elf with App 18 would use her looks, but a Bard with Cha 18 would use word play).
It also give App for the core creatures.
So 1 = Zombie, Jibbering Mouther.
2-3 = Ankheg
4-5 =Belker
6-7 =Bugbear
8-9 = Orc
10-11 = Human/Dwarf
12-13 = Giant Owl
14-15 = Elf/Red Dragon
16-17 = Dryad
18-19 = Copper Dragon
20-21 = Will o wisp
22-23 = Succubus
24-25 = Nymph
It also says that a creature below adult gets +2, adults get 0, then its cumulative -1 for each age category after adult.
It also comments that almost all races get -2 outside their species, except for things like Fey (it also says elves, but I don't agree with that).
It makes disguise an appearance skill, and makes bluff, Gather Info, and Intimidate vary according to the method used (so a stunningly beautiful elf with App 18 would use her looks, but a Bard with Cha 18 would use word play).
It also give App for the core creatures.
So 1 = Zombie, Jibbering Mouther.
2-3 = Ankheg
4-5 =Belker
6-7 =Bugbear
8-9 = Orc
10-11 = Human/Dwarf
12-13 = Giant Owl
14-15 = Elf/Red Dragon
16-17 = Dryad
18-19 = Copper Dragon
20-21 = Will o wisp
22-23 = Succubus
24-25 = Nymph
It also says that a creature below adult gets +2, adults get 0, then its cumulative -1 for each age category after adult.
It also comments that almost all races get -2 outside their species, except for things like Fey (it also says elves, but I don't agree with that).