I've checked out a few 200's (LX showed up locally as well) and I like them. They are super nice but lack the uber-solid feel that the 80 & 100 have.
If I were building up the trucks, the 200 is a better platform for a luxury suv. It's got power, more capability & better suspension. I don't consider plastic bumpers the departure and approach angle. For actual wheeling, I think the 200 will easily win stock-vs-stock.
I do not feel the size (which is big, certainly) will affect the type of wheeling most 100 or 200 owners will do. If they do heavily mod & get into gnarly stuff, then any vehicle can get damage. That's just wheeling.
I'm not dogging the 100 either b/c it's a LC but you seem very slanted against the 200. Just like you dogged the 4th gen 4Runner before you did a long term test with it
I think they did their homework on the 200 but it is evident they did some costcutting and lacking a bit of the intangible. Maybe that's just a 'showroom' impression... but I certainly feel it is nice.
I can point to the tailgate storage- it's a great idea- however, I can't get over the feeling that in the 80 or 100, it would have been rated for 1000lbs of daily abuse whereas it seems to be pretty basic plastic doors.
edit- like i said, just the flipside. in honesty, i prefer the 100 b/c of cost-size-familiarity but then again, the GX w/ kdss is a super attractive proposition to me too.