Why?
If Hunter's Mark is iconic, why not salvage it?
Because it's not iconic.
Can't you say the say for Rogues and Skills or Warlock's EB.
honestly everyone is bored with warlocks and EB, that is why now you got that you can apply cha bonus to any cantrip damage so we can get rid of it, atleast to a degree, it will still benefit the most out of new invocation variant.
skills are nothing special for rogue, just the fact that rogue gets most of then and better support. Reliable talent is rogue special, but it does not make rogue great with skills, just prevent it to being incompetent.
Even Paladin gets Divine Smite buffed via Improved Divine Smite.
that is not improvement on divine smite in anything but name.
it's just plain bonus to damage. It can be called "improved Fred", who cares, it's just plain damage boost. Honestly I would go with adding maybe some riders to paladins attacks, but hey, some want to keep it simple.
Again it seems like you just want more strong spells in the Ranger list. And instead of asking for more spells, you just want to make the current spells OP.
Nah, I just looking for a way to replace mandatory single concentration spell with anything else.
Hell, for that instance of spell prepared and 6 casting of it, 7 instances of extra skill or expertise would fit better.
13th level can be as ranger is extreme explorer, resistance to Cold and Fire with immunity at 17th level.
capstone can be whatever, being ranger capstone, we must make sure it's worse in the game.