Best tribes game?

So a while back I had a concept for an FPS game where friction was disabled and I made a prototype in HL Deathmatch and it was fun and I wanted to make it a full thing so I could play with friends and possibly put it out and whatnot. Then I learned Tribes already existed so now I probably don’t think I’ll make the concept out of fear of copyright issues and simple want to ask, which game do y’all consider to be the best?