For me when I play a game like Mass Effect or Dragon Age I make my character's class and abilities consistent with how I play the character. For example I've been replaying Mass Effect 1 and I decided to make my character a Sentinel, and for my bonus talent I took an assault rifle to suit the jack-of-all-trades I felt he was. But then I realized something as I was playing, I was constantly donning a barrier and charging my enemies, thus protecting my squad mates, as opposed to the support class I thought I was going to play. So I restarted and decided to be a Colonist-War hero instead of Sole Survivor. I also decided to romance Liara since I was now a protector instead of someone in need of protection.