Sub-Zero - MKD primary and MKDA alternate like in my avy and sig.

Best Costumes, imo.

Male.

Mavado's 1st outfit.
Kung Lao's 2nd outfit.
Shao Kahn's 1st outfit.
Kabal's MK3/MKT outfit (don't like the new life support machine, looks like a radio)
Johnny Cage's MK2 outfit (suited the cocky movie star best, imo)

Female.

Kira's 1st outfit.
Nitara's 2nd outfit.
Li Mei's 1st MKDA and 1st MKD outfits. (I love the MKD 1st costume, but wish they'd used MKDA's Chinese outfit too)
Kitana's 1st MKDA outfit.

Sub-Zeros MKD primary (I don't like the MKDA alt. it looks quite uninspired)
Shang Tsungs primary in MKDA
Mavados primary in MKDA
Kung Laos in MK2
Hotarus both in MKD
Dairous primary in MKD
Shujinkos primary in MKD
Bo' Rai Chos MKDA both-and MKD secondary