I thought "dual sport" meant street legal, so that's why I used that topic. Yes, I want to ride on the back roads to some places where I can then ride trails and play in the dirt, do some hill climbing, then ride the roads back. I can certainly truck the bike, but getting there should be half the fun. We're talking in my county or one of the adjacent ones, not cross country or anything. I may work up to that, but I think I want something easier to pick up when (not if) I drop it and light on handling.
I can't imagine that any of the dynosaurs or "stocky" bikes you speak of would seem insufficient to me. I started on a 100, then 175 back in the early 70's, then 250 enduro in the 80's. Bet even a 5 year old bike would run rings around those things. The 250 was a nice Suzuki, and I think it was an early 4 stroke? Anyway, fun bike til it was stolen from my apartment. I think that was in '85. Replaced that with a GS750 and haven't been back on the dirt since.
So I'm not a complete novice here, but definitely not current. Been thinking about this for a couple years, and having seen how many guys ride off road at Deals Gap and in southern Ohio in state parks and such, it just seemed like it would be a blast. And some good excersize.