Hot: Dawnstar In Space (1)

Dawnstar is one of the hottest Legionnaires, partly for her costume and partly because artists tend to draw her leading the others, which means we get plenty of pics of her from behind.
(above: Tales of the Legion of Super-Heroes #316, art by Terry Shoemaker & Karl Kesel) 
(below: Legion of Super-Heroes (v3) #2, art by Keith Giffen & Larry Mahlstedt)