It's easy to end a fight with 100% of your health as a Paladin too once you have Tip of the Balance.
The problem with the heals isn't that they don't work, it's that you don't have enough mobs close enough to AE them. If you want to fight one mob and end with full health Tip of the Balance works and comes at comparable level compared to the improved Soul Feast (think that's what it's called). You really should be hitting 6 mobs when you use Plague Bringer and there just aren't very many places to find 6 mobs in a reasonable distance in the open world, so it's a lot of wasted potential. Sure you can AE 2 or 3 mobs too, but it'd be barely faster than beating them down one a time.
The problem with the heals isn't that they don't work, it's that you don't have enough mobs close enough to AE them. If you want to fight one mob and end with full health Tip of the Balance works and comes at comparable level compared to the improved Soul Feast (think that's what it's called). You really should be hitting 6 mobs when you use Plague Bringer and there just aren't very many places to find 6 mobs in a reasonable distance in the open world, so it's a lot of wasted potential. Sure you can AE 2 or 3 mobs too, but it'd be barely faster than beating them down one a time.