Assuming Douglas is at his best he outjabs Morrison and stops him in the mid rounds. If it's the porker Douglas, Morrison wins by stoppage.
I think Tommy's heart might actually win this fight for him. Douglas was the better fighter overall, but he had a tendency to quit sometimes (Tyson bout being an exception naturally) and if Morrison landed on him, he might succumb.
That's kinda what I was thinking. Morrison was a fast starter and he wouldn't allow Douglas to get into the comfort zone that Tyson did. If Morrison opens up like he did against Ray Mercer...I don't see Douglas' chicken-heart standing up. I would take Morrison by TKO.
Douglas would simply be the better man in this fight. Morisson was smart and he had a good defense, but that long jab of Douglas's would be simply too much for Morisson on the outside, and no way he goes head-on against someone who can punch like Douglas. That's just not who he was. Douglas would be prone to doing something stupid, like trading left-hooks with Morisson, but I'd have him as a solid favorite.
Peaks, I'd favor Douglas. If they fought like 10 times however I see Morrison winning 7 times by KO via left hook