Another brute take -- teen mutant. I think I made him for one "school" group and he ended up in another. I loved doing mutants, and brutes toward the end. I always shyed away from tankers. I tend to think of tankers like the THING -- able to dish out great damage. Most tank builds I tried were more defensive the offensive especially EARLY on. Brutes weren't.
That is the one big difference between City and the other Super MMOs. Getting into teams in City was far easier. It Champions I've got several unaffiliated heros. It seems to be VERY hard if you aren't making a toon for a themed group to get even noticed.