On topic list

Street Fighter - Cami and Chunli

Mortal Kombat - Sindel, Sonya blade, Kitana and possible more but only counting the old games

All dead or alive girls

Killer instinct - Orchid

lara croft

Sniper Wolf from Metal Gear Solid

On the same topic but in a more modern way i wanna point out that the sexiness in women in video games changed one games main character. In hearthstone one of the heros Jaina had her pic changed due to too much cleavage. It was like people were choosing her for that reason but if you think of it a mage deck can be OP if you know your cards and Jaina happens to be a core hero unless you buy a new hero to replace her