Meh the real issue with Paladin DPS is this; we have one offensive buff and it has a 90second recast - and our DPS stance doesn't increase our damage it just adds an additional 50 potency strike per auto-attack.

Toss 5% damage increase on Sword Oath, and either significantly reduce the recast on Fight or Flight - or add a 5% damage bonus applied with Royal Authority.

This would easily bring Paladin closer in line with Dark Knight.

As for Paladin's mitigation potential - this is negligible at best depending on the fight. Clemency specifically can be problematic in practice.