No brainer. He's an alien so, SF
He doesn't have any super powers. He has a bunch of fancy gadgets and he's a great athlete. I'd say he's contemporary crime.
Like Batman, Iron Man is a very rich man with a penchant for amazing gadgets. Contemporary crime with maybe a nod to SF because of the amazing suit.
Thor (and Loki)
Another no-brainer. They're Norse Gods. Out and out fantasy.
Guardians of the Galaxy is space opera, for sure. But as revealed in GoG2, Star Lord is the son of a god. So he slips into the fantasy realm.
Peter Parker obtained his powers when he was bitten by a genetically-modified spider, so I'd put him into SF.
A superb archer with a bunch of trick arrows. This is another wealthy businessman who moonlights as a crime fighter. Contemporary crime.
Another professor mixing up chemicals he shouldn't. Kind of like a modern day Dr Jekyll and Mr Hyde. That makes him SF.
I gather he's just very, very fast. I'd put him into fantasy.Maybe soething like a mutant?
A Greek Amazon, daughter of Hippolyta and Zeus. Fantasy.
Hmm. It's a fictional kingdom, but to me there are overlaps with the Phantom and Batman. He's a very fit guy dilettanting from kinging as a crime fighter. Contemporary crime.
The Phantom is a man with a 400-year family history, the title passed from father to son. Contemporary crime.
He's representative of all Force users. As far as I'm concerned, although I'll admit to thinking it might be a real thing, the way Force users are portrayed in Star Wars puts Yoda etc into fantasy land.
That SF and F bucket is a bit like Hermione's bag - totally extendable and able to fit just about anything. Just as well, eh?
And on another topic, I'm taking part in the ALS association's 'go blue for May' campaign. Pippa and Laurie have both talked about it on their posts. Here's a link to my own website, talking about this excellent cause. We'll all be donating 25% of money earned on the sale of our books to ALS research. So if you're looking for a good SFR or paranormal read, head over here - and know you're donating to a great cause.