Shroud:
There are house rules for my game (though mechanically it's as straight-from-the-book MHR as I can make it, with minor adjustments to rules just to clear up a few things rather than re-creating it to be my own thing), the biggest and most relevant right now being that all new players must run a hero with an official build from a list (in the RTJ thread) for the first adventure (which is actually ending before long so you'll get a relative short-cut). But after that we can talk about a hand-made build (as long as there is precedent for the character in the comics).
That sounds good to me. Off of your list, I'd be interested in either Speedball or Night Thrasher. Give me a day or so, and I'll send you a proper RTJ.
Falcon:
I could take over this game if there's still interest, and as long as no one minds a slow pace. Like Shroud, I'm also running my own separate MHR game, Marvel Mania, but it could be fun to have a second game to tinker with.
I've wanted to run Annihilation for the longest time. Is anyone interested to play through it here?
I'd be interested in sticking around regardless of the pace. Can't say I have much knowledge of Annihilation, though, but I'd be willing to give it a shot.