Yeah.. they really need to make all the invulnerabilities more similar in effect..like no bad points.

Since PLD gets a straight invuln, it could be you drop to 1 hp and can’t go below 1 hp… then you gain massive hp-steal with attacks, ideally healing yourself to max. That’s it, no negatives. Ideally popped when you are about to die anyway, hopefully ending with more hp than you started. Essentially holmgang+hp drain, whereas holmgang locks mobs in place. (Arguably Holmgang should do a little more too, like offer some defense to nearby party members)

Paladin as is, is just incredibly good with its unconditional invuln and clemency…the other tanks need stuff on par.