>>11962360 (OP)
Donkey (the coolest of all) > Diddy (funny little fellow) > Dixie (cool gimmick) > Kiddy (he's pretty big for a baby. He will probably grow as big as King Kong) > Thes rest
I don't have anything against Kiddy. When I was a kid, I thought it was cool to have another playable big monkey.
Always Donkey. The stupid clothes and hair and other anthropomorphic clutter piled awkwardly onto most of the rest of them is ruinous. Some of them pull it off better than others though. Cranky and Diddy don't go very far with the anthropomorphism, and Cranky's personality is kinda fun so I don't mind him. Lanky's stupid clothes play into his clownish style so he's okay too. But Manky is the one who takes second place. These monkeys should be nude.
(Restrained use of highly iconic accessories is good though. I like DK's tie a lot, and Cranky's cane works well.)