For me, Eaton shades it by a hair.
Like has been previously mentioned Morton is unparalleled as the babyface in peril and is much better on the stick, and in normal circumstances that would edge it; however Eaton worked for for JCP/WCW from 1985 - 2000 (which is a great run when you think about it) as well as dipping his toe into ECW. He had a fun run with Regal in the Blue Bloods and on the whole was easier to repackage compared to Morton. I also feel he was more innovative with his moves compared to Morton.
I really hated Morton as a single in WCW in 1991 as part of the York Foundation - to me his size was really exposed in singles matches.
In closing both are top tier 80's US workers and I even though I am going with Eaton I would never argue with anyone who chooses Morton over him.