Iron Man Vs War Machine Vs Iron Lad Vs Colossus

which one of these guys win

1st fight no rules
2nd fight grounded, no bfr

Which versions of the characters?

1st fight probably goes to Iron Lad: with no rules (and out of character) he simply BFRs them into the dinosaur age. In character he might lose, but he has tech 1000 years (at least) ahead of everyone else so it's not a stomp.

Iron-lad either sucks or solos, his armor is superior.

Tony.

who is iron lad? his feats/powers?

Kang Jr.

Kidding. Actually, the little snot learned that Kang the Conquerer is his future self and tried to escape his fate by putting together the Young Avengers or something like that. I don't really know that much else about him beyond that. You may want to try this place:

http://www.comicvine.com/iron-lad/29-2263/

I know next to nothing about Iron Lad, but I know that neither Tony or Rhodey have enough firepower in their standard gear to do much to Colossus, if it gets up close, he'll wreck them, and he'll probably be tossing debris the whole match as well.