I'm not sure of the timeline. I started around '84 but I actually had the "Official Advanced Dungeons and Dragons Coloring Book" for about a year or two before I started playing and that is what piqued my interest. So my pedigree would look something like this:
1e
BECMI
1e
2e
1e
3.x
1e
Many other non D&D such as V&V, FASERIP Marvel Superheroes, Star Frontiers, Indiana Jones, Gang Busters, Boot Hill, Gamma World, Paladium Fantasy, Robotech, Top Secret (1st Edition), GURPS, Toon, Champions, DC Heroes, and some others.
Nothing ever really seemed to stick with me like 1e did. I'll play just about anything; but as I've said before, 1e is my prefered edition.