Iron Fist couldn't beat Wolverine! It would be an ok fight, but it wouldn't really be close. That's like saying: Daredevil can take down Batman, Effigy taking down Sinestro, Chi Chi taking down Broly, or the starship Enterpirse taking down Mogo. Iron Fist is good, skilled and powerful; but he's limited to being just a man who knows only one fighting style. Captain America is a Super Soldier who knows three forms of martial arts, is a leader, knows battles and war intimately, stronger and faster than ten men, and has a healing factor. Even without his shield, Captain America can take down Iron Fist; he'll break Fist's arms and beat him like a red-headed step-child.
first of all, I think you made a mistake because you said wolverine. Also, Iron Fist knows many forms of martial arts, not just one. He can divert his chi to heal really fast. also you have to consider the image. I mean sure cap might beat iron fist at a distance, but look at the angle. Cap's stomach is totally open, all iron fist has to do is punch him in the gut, and depending on which version of iron fist we're talking about, he could use Cap's chi and cause a painful implosion in his stomach, crippling him for a while. then he punches him in the nose, knock him out, or uppercut him in the nose, get the bone in the brain, and potentially kill him.
I don't think Cap would be a match for Wolverine, either. But in close combat, iron fist can beat nearly anyone. and you still haven't disproved my point on the angle and the picture, you just expressed an opinion and nothing else
...this is actually a viable versus premise. I'm impressed. Usually people do something inane like Superman versus Wolverine, or Hulk versus Luke Cage. But not you: you actually brought two potent entities and pited them against eachother for an altogether unpredictable outcome. Kudos.