Best end game potential as Tanks?

Do you think that tank builds from marauder and templar have the best end game potential?

Played most classes to 35ish but I want one that is rewarding with a full end game setup.

I feel like maybe tanks would be?

the only thing that starting class gives is a starting position in the tree.

a lot of "classes" can be good tanks:
templars/rangers get a ton of block both if they wish, that coupled with armor/evasion/life/whatever makes them good tanks,
duelists can grab the ranger nodes for block and the life nodes from mara
mara has the easiest time getting a ton of good health nodes and life regen
shadow with high es leach and high resistances/evasion is also good
etc

apart from witch (with the now nerfed CI) all other classes can build "tanky"

the only defining tank skill imo is enduring cry (taunt) which requires strength, but once again, 100-150str is aavailable to all classes if they wish to build tank