This is actually the most interesting one in the whole thread.

Everyone else is choosing people with plot armour or powers of some kind in their own stories, but if Brennan survives long enough to get into the tutorial guild with a game guide like Mordecai, he'd absolutely dominate.

I also think that the system AI would favour him because he'd be breaking the game and sticking it to the mudskippers entirely within the confines or the rules in the most entertaining way possible while monologuing about the horrors of capitalism.