The power thing is always a fun mental exercise.  I loved in Star Brand when the hero went to a comic-con and JB and Roger Stern (iirc) told him why a secret identity wouldn't work in real life - how easily you could guess who he really is via simple clues (height, facial structure, gender, race - all obvious with a glance, plus where he operates out of), then use any number of databases to cut down to a handful of people who he might be and kill them all if you are an evil villain (or just an average drug lord).  The drawbacks of powers nicely covered in Next Men (Invulnerable?  Hope you don't want to feel anything and like having long hair and nails)

Yeah, comic book super-powers/heroes make zero sense in any real world attempt pretty much.  Still fun though.