Asking for a friend, who do you guys find the most annoying agent to have to play against and why? (Looking for a new agent to main :P)

I'm a boomer and reached Ascendant last night. My rank has fluctuated from gold to plat but last act I hit Diamond (due to the redistribution of ranks from the introduction of ascendant). Anyway, here's some obligatory tips: **Be a dick**\...