Kongs-
Top-
DKC2 Dixie (Her helicopter and that she's still fairly fast to boot!)
DKC3 Dixie (ranked sightly lower because she's sightly more sluggish overall)
High-
Diddy
Middle
GBA Kiddy (Improved a lot from his Snes counterpart)
Donkey Kong
Low-
SNES Kiddy (Horrible Kong overall best used as a extra hit point

Animal buddies-
Top-
GBA DKC2-3 Squawks (Flys and shoots nuts at a very fast rate)
SNES DKC 2 Squawks (almost the same as GBA but shoots a little slower)
SNES DKC 3 Squawks
DKC Rambi
GBA DKC3 Enguarde (His hitboxes are ridiculous)
High-
DKC2 GBA Rambi
DKC2 Rambi
Squitter (hard to use but great overall animal buddy)
Enguarde other appearances
Middle-
GBA Winky
Rattly
SNES Winky
Low-
Expressco
Ellie
Garbage-
Parry