I had to pull the spec sheet from Acer to get a better understanding, they are almost identical. The Acer you are getting a better processor IMO but sacrificing on storage with a 512GB SSD versus the 1000GB SSD with the HP, THOUGH the Acer has a second bay to add an additional hard drive. It appears also that the Acer has some extra bells and whistles for the eye. Go with your gut, if your Acer did not give you any problems (think small here) as in battery cord, battery life, over heating, etc., you might be want to be a repeat customer. If you haven't ever experienced quality control issues with HP and want to go in a different direction than weigh that out. Many moons ago working IT, we were an HP shop as in the brand preferred that we used and relatively didn't see many issues to complain about, granite two different animals here with gaming. My gut between these two is the Acer, hopefully a gamer will see this thread and throw some more weight.
https://www.acer.com/ac/en/US/content/predator-model/NH.QC2AA.003