I'd go so far as to say that Windows 3.1 was more sophisticated than classic AmigaOS ever was. It certainly was more stable.
I couldn't disagree more, even "Mr Windows" Paul Thurott was an Amiga guy back then and admitted once on Windows Weekly podcast that the first time he used Windows 3.1 he thought it "was a joke, how can people seriously use this" (to paraphrase).
Workbench 3.x was light-years ahead of Windows 3.x, it really wasn't until 95 that it even felt remotely comparable.