Wait, there's other editions than 3.5? lmao 3.x is the only edition worth playing, mainly because there were so many kickass third party supplements out there that house rules were unnecessary. Tournaments, Faires, and Taverns is one great example, with rules for things like jousting and playing dwarf-toss, and other tweaks to the core rules.
The fact that it had rules for pretty much everything you could think of, and if it didn't, it had a way to make those rules, was it's charm. You could pick and choose how "deep" you waded into the rules--keep it simple and light, or go information and rule dense, and make it excruciatingly detailed. IMHO, that verticality in rule-density was unique, and nothing has come close to it since with the exception of PF.