Personally Kisame is an elite choice tank since he abuses the enemy chakra pools while Karin would be nice if you don't have a better healer.

Which leads us to Kurenai. A better healer. You get Kankuro for free and Hidan is so not worth getting, he's squishy as hell and wants to be your tank.

Kakuzu on the other hand is a god.

As for Tobi... no. Just no. He's great in some teams but he's going to be running away a lot. Kabuto for the win.