Since you asked for opinions, I will throw my 2 cents out there.
Before adding any upgrades I would make sure I was at the proper weight ration on the pin box. My 2nd fifth wheel had this issue constantly, and after tons of reading was advised to go to the scales to make sure I was at the proper pin box percentage. Comes to find out I was light and just by dropping the hitch 1 hole the problem mostly corrected itself.
We now have the air safe hitch with out current truck and trailer, but this was a pre-buy to take any stress off the nose when we start full timing.
When making the choice between pinbox and hitch, the choice came down to do we want to upgrade something that we may sell in the future, or go with the hitch that we will have as long as we tow.
Good luck in your quest.