For the longest of time, probably since I first played Mass Effect back in uh... 2013/2014 (when I turned 18), I always found Gunnery Chief/Lt Commander Ashley Williams more attractive and appealing at the time.
She is a strong soldier with a badass attitude with looks to match (imo)
But recently, like in the past year, I have played through Mass Effect 1 and 2 with Kaidan Alenko on the team and I actually don't find him as annoying as I thought I would. He is a caring, kindhearted man who loves a good steak and whisky. He has grown onto my heart. Only trouble is now when I play Mass Effect 1 I'll have a difficult choice to make.