Tav_Behemoth
First Post
You left out 3e and 3.5e.
Going right from AD&D to 4e a bit too far a leap, IMHO.
I'd love to see someone do that analysis; I won't until I need to make a 2E, 2.XE, 3E, or 3.5E, which is to say "no time soon".
A good book about choice and how to get its benefits without options paralysis is Nudge, which inspired this blog post (and perhaps others; I'd love to know about 'em if so!)