Tanks that do damage are the best.
Trinity force/Tank Alistar.
AP/Tank Shen.
:)
But I did get a pretty good game using Riven. Though, I don't know if I was doing good or the enemy was just bad. People keep trying to say she's a tanky DPS but I really don't think she can fit that role good enough. CDR AD and lifesteal work great with her.
I keep trying to use Nidalee, and I can do good. I just do bad more often than I do good. Though we still usually win even when I do bad, because of her heal/ASpeed buff, plus traps. So sad that her heal took a gigantic nerf. I can't instantly heal people to full health anymore.
I still try other champions here and there, if I'm ever in the mood for it.