EzekielRaiden
Follower of the Way
You get two uses of Action Surge per rest at level 17. Admittedly, very high level, but it does happen. All Rage does in this context is give you +2 (eventually +4, at level 16) damage on a successful hit. Not at all a bad thing, to be sure. But not "double your damage output, or something better if you think double damage isn't as worthwhile."It's comparable with the Barbarian attacking with advantage during Rage. Highly dependent on the target's AC, of course. And it lasts nowhere near as long. And heaven forfend that the Fighter be - gasp - a better fighter than any other class. And you still only get one Action Surge per short rest, when the Action Surge is useful for many things outside combat.
Again, I'm not saying Fighters don't need some love. I just think this is the wrong kind of love. Just as one example, it would make a Fighter 2 dip basically mandatory for most characters--being able to take 2x actions for most or all of one combat per rest would be an almost irreplaceable benefit. It's almost as good as a concentration-free haste spell that refreshes on a short rest. Giving out the main benefit of one of the best 3rd level spells to 2nd level Fighters doesn't sound remotely balanced. Simple, and a boon to a class that could use boons; I grant both of these things. I just don't think it's wise or even the right solution for the problem. The Fighter needs more it can contribute outside of combat.