I just recently started messing around with a friend using D&D 5e, and the two of us have been goofing around in Roll20 with characters we made to test some things, one of which a 3rd level fighter who went Battle Master. I chose my maneuvers, and later was browsing opinions on which ones were good.
I saw that people tended to rate Rally okay to poor, one argument I saw being that there were more useful applications of a bonus action, like a Polearm Master's blunt strike. I've actually found Rally to be pretty nifty in my short time with it, as I realized that superiority dice come back after a short rest.
What I've been doing with it is blowing all of my superiority dice on Rallies before a short rest on our squishy party members because in the PHB there isn't a defined length of time that the temporary hit points last, which the PHB states means they last until you finish a long rest.
Problem is, are you even supposed to use maneuvers outside of battle? I didn't say anything saying you couldn't, I mean, you can cast spells outside of battle, but it does seem somewhat against the spirit of "maneuver" to use it in a non-combat situation. Am I just missing something somewhere?