These builds are pretty sweet - it reminds me a bit of the good old days of 3e charop. Brings a tear to this old fogie's eye.

Something I want to bring up (which some kind soul might use to make something hilarious): Armor of Agathys and Arcane Ward have some crazy synergy with each-other. From how I read it, Arcane Ward takes damage before your temporary HP from Armor of Agathys, but Armor of Agathys still triggers (if you were hit by a melee attack, of course). I'm pretty sure there's a gimmicky front-line fighter that could use that.