I enjoy character creation as well, although I'm dumb as fuck at it and usually have to double check everything with the GM. Which is weird since I almost always make a Halfling/Orc Monk/Paladin
Harbinger used to run 3.5 and occasionally Pathfinder. They're fun systems too. I tried to run Deadlands a few years back. It really does come down to 5 is newest and I want to say the one that DND Beyond uses so it's most common.