innerdude
Legend
What you're calling "neo-trad" here I'd call "high-quality traditional play" giving the player space to develop the character. Some of us were doing that back in the early eighties.
I think there may be some overlap, but neotrad is precisely different because traditional play always has the assumption in the background that the GM's prerogatives supersede the players'.
When push comes to shove, the GM's ideas for the game world / continuity will take precedence, period.
Neotrad would reject that premise outright. The PCs interests are at least equal, if not superior to anything the GM envisions, and a neotrad player would feel it a violation of the spirit of the game more keenly than a trad player.
The trad player may not like it, but the unspoken social contract of trad play generally assumes it's the player's duty to accede to the GM's needs.
In play the two might play out similarly in many respects, but the underlying relationship between players/characters and the GM is different.
One other thought --- does anyone find it easier to get into character when another character in the party is highly developed / realized / fleshed out?
For me I've found that to be the case. When I have a strong presence to play off of, my own characters become better realized as a result.