How about Ronda Rousey?
Attractive AND a badass
I like Rousey and find her attractive, but I think she might be too much at the other end of that scale where she's a little too muscular for some people's comfort.
She also falls into that category I mentioned of being in a profession that allows her to work out to an insane degree. She has one fight every few months and spends most of her time between fights in the gym. Professional wrestlers workout a lot, but they're on the road a lot, they have three or four matches a week, every week, all year long. They don't have time for the same regiment that an MMA fighter does. They also don't have to manage their weight as much because they aren't restricted by weight classes. So I see a professional wrestler's regiment as maybe more in line with what a Bioware protagonist would be doing; yeah, you want to keep in pretty close to peak shape, but you only have so many hours in the day, you're travelling a lot, you're on missions, you're in fights, you have paper work to file, meetings to make, etc.