Outfit with the most votes
Romana in Destiny of the Daleks and Yaz in Survivors of the Flux, both with 15 votes.

Outfit with the least votes
Jo in Curse of Peladon and Mel in Terror of the Vervoids, both with 2 votes.

Highest Average Votes per outfit (excluding characters with only one outfit in the round)
Winner: Yaz (11.75 votes per outfit)
Second Place: Bill (11.5 votes per outfit)
Third Place: Romana 2 (11 votes per outfit)

Most Winning Outfits
Yaz (3 outfits)

Highest Average number of winning outfits
Winners: Bill and Nyssa (2 outfits, 100% success rate)
Ryan (1 outfit, 100% success rate)
Second Place: Yaz (75% success rate)

NB. No more costume brackets until June. I'm going to be away on and off and don't want to worry about posting schedules.