This is my top 15 favourite (Girl) costumes in Teen Titans my opinion.
15.Arella's Primary Outfit
14.Blackfire's Primary Outfit
13.Cheshire's Primary Outfit
12.Terra's Apprentice Outfit
11.Terra's Teen Titan Outfit
10.Starfire's Primary Outfit
9.Terra's School Outfit
8.Starfire's White Dress
7.Argent's Primary Outfit
6.Raven's Primary Outfit
5.Jinx's Primary Outfit
4.Terra's Primary Outfit
3.Kole's Primary Outfit
2.Kitten's Primary Pink Dress
1.Starfire's Pink Dress
15.Arella's Primary Outfit
14.Blackfire's Primary Outfit
13.Cheshire's Primary Outfit
12.Terra's Apprentice Outfit
11.Terra's Teen Titan Outfit
10.Starfire's Primary Outfit
9.Terra's School Outfit
8.Starfire's White Dress
7.Argent's Primary Outfit
6.Raven's Primary Outfit
5.Jinx's Primary Outfit
4.Terra's Primary Outfit
3.Kole's Primary Outfit
2.Kitten's Primary Pink Dress
1.Starfire's Pink Dress