With regards to VC-10's append, that would assume that the turbulence was smart enough to leave the plane inverted, level, and at the correct angle of attack. I know that any aircraft, in theory, should be able to do a 1G roll with no effect. There are those famous photos of the B707 Prototype doing a roll, much to the terror of those on the ground. I've seen it written in some places that most airliners would be difficult to pull out of a steep dive or spin. I guess we'd need a real ATP to tell us that.
Like Matt D., I don't care much for real hard turbulence either. The only comfort I have when experiencing it is that there are few instances where an aircraft has been severely damaged because of it. There was a TWA 707 that actually broke up over Mt. Fuji years ago, and a JAL 747 that lost an engine and suffered wing damage after departing Ankorage, AL. He was able to return to the airport with quite a bit of skill.
In any case, maybe it's because you get more chicken as you get older, but I prefer the smooth ride.