for the hero vs hero thing: all the goddamn thanes vs macbeth the man is literally unstoppable
ooh I'm imagining some kickass animated fight sequence now
Macbeth, of course: strong telepathy & telekinesis (but nowhere near as strong as Val during his power trip).
The thanes: an archer, a D&D bard, a shield-summoner, another cooler archer, and an infrared scope.
If Menteith gets any music out of his instrument, Macbeth loses, so Macbeth would probably go after him first.
The rest of the thanes would rush to his aid, and Angus and Macbeth would be pretty evenly matched in combat (with Macbeth maybe having just a bit of an upper hand). Ross and Caithness would stay back and fire bows from afar, and if Macbeth ever tried to hide, Lennox could find him.
Macbeth's telepathy is only strong enough to fully incapacitate one or two people at once, though he could use telekinesis to throw about three or four of the thanes around.
Ultimately, he's outnumbered unless he can take down one of the thanes first.