RPG-wise I'm a child of the '80s, starting in 1984 with Fighting Fantasy, playing quite a lot of different games ca 1985-19991 (Paranoia, Star Wars, Judge Dredd, Call of Cthulu, a bit of Dragon Warriors) - but always mostly and predominantly 1e AD&D. I certainly found the '90s a grim time for RPGing, and while I ran & played some stuff occasionally I had lots of fairly poor experiences and I only really came back to the hobby fully with 3e D&D in 2000. Since 2000 I've played very little that was not D&D-related.
Ah. I wasn't born until the early 80s and my only RPG experiences that decade were Fighting Fantasy Gamebooks. I started in the 90s, oddly enough with mostly 80s games; GURPS, MERP* (sometimes with added Arms Lore), WFRP, Paranoia, Cyberpunk 2020 and *shudder* RIFTS (one of my friends was a fan). The only one of the major 90s continuous streams of books at my FLGS to impress me at all was GURPS (the others being TSR Shovelware at about five books a month, World of Darkness, and RIFTS), and I spent most of the 90s being disappointed by the gap between what I thought RPGs could be and what they
were mechanically. Of them, GURPS was my favourite system.
When 3e came out I flirted with it. At last here was a version of D&D that
almost matched the design of WFRP and was in sight of GURPS which was to me the high point of RPG design when they weren't flirting with absurdity. And had both the player base of D&D and was Open Source (what can I say? I was a teenager and that was a smart piece of marketing). In the early 00s, I had a look at The Forge, read the essay on Simulationism (which was the creative agenda that the RPGs I liked at the time followed through on), realised Edwards had mangled his understanding of things in the parts I knew, and from there came to the conclusion that if he understood things that badly I expected the promises to be as empty as the ones I'd found the World of Darkness to offer in practice. So I left them well alone.
I initially ignored 4e - I wasn't into gaming at the time. Then I split up from a long term girlfriend and needed more hobbies. I picked up the 4e books and was hooked. Finally the PCs and monsters
moved properly. (I'm a kinaesthetic learner and used to dance a fair amount - the way people moves matters to me). And I neither felt as if I was cheating by playing a wizard nor hamstrung by playing a fighter. Then I started looking around the RPG market again in earnest and it bore only a passing resemblance to what I was expecting, in the best possible way. What I'm seeing now actually follows through on the promises the 90s gave in both writing and play. And the Forge I'd dismissed, along with a lot of other people, turns out to have produced a number of works of genius (and no few turkeys but that's to be expected as no one's ideas are good all the time).
For the record if I want to run a game of Buffy, I'm not sure whether I'd reach for Monsterhearts or Smallville. Both, I think, could do it pretty awesomely in different ways. Smallville I think - Buffy isn't normally
quite messy enough for Monsterhearts.
* For those who don't know, MERP = Middle Earth Roleplaying and is basically Rolemaster Lite. Something that IMO massively improves Rolemaster.