I'm in the AD&D 1E camp. Sometimes OSRIC, which is just 1E with the 1.5E bits that I like.
I have not taken a good look at 5E, but I get lost in some of the deeper 2E stuff... I'm not sure I'm going to like anything post first edition.
Plus there's the whole nostalgia thing.
I DM over at Unseen Servant (a PbP forum) and play there as well. I also DM my daughters (13yo, 11yo, and 8yo... the 4yo doesn't play... yet but she likes the dice) and I also am currently DMing some friends through G1 over Skype. The Skype game is only monthly at best, we hope to get on a better schedule, but real life is a killer.
Looking forward to seeing what's up here!