This might seem like a dumb question, but I'm going to ask it anyway.

Will Spider-Man (WI? 14) get his Super Sense bonus from Wedding Present if he is adjacent to a friendly Black Cat (WF 13)?

I think he will

Because it specifies "named" he will.

I would make you provide a copy of the marriage license though

Thug (SFSM005) is a cheaper option to activate the trait, on a Spider-Man Family themed team.

True! and Mary Jane from SFOSM might be more advantageous (for the +1 attack).

But the literal Black Cat is probably funniest.