I encountered them in the Lobo/Jingle Hell team-up but didn't like them a whole lot. The main reason I wouldn't want to write them is I hate alternate worlds scenarios--all that infinite dimensions stuff leaves me cold. Infinite dimensions--and infinity itself--only exist in mathematical equations. Mathematical equations are NOT reality. I guess some writers get good mileage out of it, though.
Don't know anything about him.
I always liked the Scrooge McDuck stories, no desire to write one, though. John wagner would probably differ--he used to be a huge Scrooge fan.
Well, I don't like Superman but I do like Smallville (first 2 seasons, anyway--haven't seen any since). I've written 2 Smallville novels ("Curse" and "Dragon") and would be happy to write more.
Once upon a time...yes, I would have liked to write Spiderman maybe 20 years ago. I don't care so much now, though.
Great character--the template for Batman and Judge Dredd. I started my freelance career writing Tarzan for European publication--I must have written 30 or 40 stories, though few of them ever appeared in English.
Gadget from "Chip'n'Dale Rescue Rangers" (here's a link that will tell you everything; check out John W. Nowak's fanfiction):
Never seen it, I'm afraid.