Ok. I'm not sure "you have advantage on attacks against enemies who are exactly 80 away at the start of your turn" is a good feature.
The whole range band effectively lengthens by your move speed on the Wildheart. Melee range is extended 30-40 ft. Normal Range of ranged/thrown weapons is extended 30-40 ft. Long range of ranged/thrown weapons is extended 30-40 ft.
Given the nature of javelins, this means that anything more than 30 ft range breaks down to (pre level 5)
30-60 ft, Wildheart uses greatsword while zealot uses javelin.
60-90 ft Wildheart throws javelin normally while zealot throws with disadvantage (or with advantage and normally is reckless attacking).
150-180 ft, Wildheart throws a javelin while zealot cannot.
In any of these bands the Wildheart performs as well or better than the zealot for damage. (Level 3 being a sole exception where he’s down by a single damage in the 30-60 ft range).
It's tied at level 4.
2d6+ proficiency (2)
2d6+ half level (2)
Yes, thus agreeing with my statement that the zealot in that situation isn’t better at level 4.
Any turn Wild Heart used PAM, the Zealot also uses PAM.
I assume you mean the bonus action attack instead of the reaction one, because it’s clear the better ability of the wildheart to position will set up the reaction PAM attack more often.
I agree that oftentimes the zealot will also be able to make the bonus action PAM attack when the Wildheart does, however, prior turn positioning and speed can mean the Wildheart is in regular move range this turn while the zealot is still not. This is especially important when the priority target is a target that doesn’t want to close the distance to the barbarian. Say a back line caster or an enemy rushing past the barbarian toward the party bard.
1.5 damage more than the Zealot.
2d6+2d6
Vs
2d6+1d6+2.
Looks like you forgot GWM.
So to combine everything, the feature would be....
"you have advantage on attacks against enemies who are exactly 75 or 80 away at the start of your turn.
That’s simply untrue and it really makes me question whether you can remain unbiased on the topic at all.
If you start your turn next to a different enemy, the range is changed from 30' to 80'"
Vs
"+1d6+half level damage and extra health"
I have no idea what you are trying to say here.
Again, I think wild heart can be better in the right party. But Zealot is just better in more situations.
When you are not even granting the Wildheart all the situations he’s better at than the zealot, then it seems obvious why your conclusion on the matter is flawed.