Basswood - Pronounced like the fish, not the guitar. Lightweight, warm tone, pretty soft, dents relatively easy.
Walnut - With the exception of looks, I think it is very very similiar to Maple... it is alot darker though
Alder - Lightweight, often used by Fender, full sound.
Swamp Ash - lower-medium weight, warmth and brightness compliment each other well, good for dyed finished (IMO)