I'd have to add Warden to the mix too. While they are less absolutely impressive punishing defenders and damage dealers than your fighter is you can survive ANYTHING. The level 12 Goliath Warden one of my players was running for a while was not only simply unkillable, it was unmovable and just laughed at any condition. She was dropping some really serious DR and other bennies on the party too. She wasn't too sticky, but it usually didn't seem to matter as damage mitigation was pretty impressive. Builds are quite straightforward too.
YEP, Striker Build Warden is pretty impressive.
Wardens by nature are very very hard to kill, then throw in an attacking build and you have striker damage combined with being hard to kill.
Imagine how hard it would be to knock off a party of just Wardens ?
By coincidence I am playing a Goliath Warden, L6 now - but with a specialist path Stoneblessed then Raven Knight ED, at Epic he would have move 10 with Avandra boots to shift 5 then charge with phasing and insubstantial.
Effectively 50% resistance to damage and move through anything.
But a Dwarven Warden at L1 with Crippling Crush is quite powerful starter.
At-will Slow and extra Con mod to damage.