Hulk SMASH! Welcome to Basenotes.
I don't necessarily categorize scents seasonally. Sometimes, I've worn a frag which is deemed a Summer frag that smells great in Winter. I own the three you've listed and I like them all, you won't be disappointed with any of them.
Unforgivable is actually a good perfume, believe it or not. There are indeed some similarities between MI and Unforgivable, yes, but I wouldn't get hung up on that.