Re: 7 heroes summoned through time: who are they?
I'd avoid Doc Holliday - despite being on the side of the "good guy" Earps, Holliday was a stone killer and not a nice man at all (he was, IIRC, the only man at the "showdown" who actually used pistols by preference).
If you want a "gunfighter" from the old west, I'd suggest Bat Masterson, one of the later gunmen. But you should remember that Bat used a rifle by preference, and only ever claimed to have knowingly killed two men (though he was in several battles where he may have killed more - but was never sure).
Or, of course, there was Wyatt Earp himself.
EDit: We seem to think alike, McCoy...