At least in terms of official artwork and the various costumes for Zarya in the game, I cannot get past the super muscular appearance of her. No Sombra butt here, that butt appears to be quite elusive, must come with the gimmick.
Top Sexiest Overwatch Girls | CSRadical
Oddly enough as well, in this picture it is actually 60 year-old Ana in there, but with that butt rivaling the other girls, I think the artist drew Captain Amari with default Ana head on the shoulders.
For some, having Mei so high on the list may be a surprise.
No Sombra butt here, that butt appears to be quite elusive, must come with the gimmick.
Widowmaker is arguably the sex symbol of Overwatch, very much designed to be the girl with all the looks, not only the cleavage, but clearly shows off her butt the most.
Not even being outed now as being a lesbian can keep this British beauty out of the 1 spot.
Naked Overwatch Heroes - Overwatch Hentai