Minato anything. If you happen to have initiative over him, you swing, and miss him by a mile, then he attacks you eleventy billion times in retaliation. The one I hate most is Jonin Minato because of his link Assist, and given I'm forever encountering 100+ players whose Mains have more power than my entire team, it's pretty much a one-hit-kill.

I used to not like Shisui, either. He just kind of fell off the map, though.