Iron Man vs the Black Night

Hulk vs The Thing
Alien vs Predator
...
Lingering in the air like unclaimed flatus for upwards of 35 years is the inevitable, but undiscussed issue of who would win in a fight; Iron man or the Black night?
A bout of fisticuffs twixt Black Sabbath's Iron Man, and Deep Purple's Black Night. No weapons, no allies...just a straight up street brawl at the dawn of heavy metal.
Let's explore the facts...

Iron man
Has he lost his mind? Can he see or is he blind? Can he walk? Is he alive? Clearly, these are pivotal issues. Until these are resolved, really we're firing blanks in the dark. During our adventure with Iron man, he "kills the people he once saved" and "lives again". This resolves at least one of the issues, but raises important questions regarding his loyalties and commitment to a cause. Iron man is a turn coat, and a bully. I appreciate that frustration is a manipulative harlot, but warriors intent on victory must contain and channel such powerful conditions. The implication here is that frustration is Iron man's master. This is not virtuous in the heat of battle.

Black Night
Well...clearly, this is not even a thing. It's not your classic horse bound, armour clad, Arthurian legend at all. It's more likely an abstract metaphor for depression, drug use, and/or duress and maybe other nouns beginning with 'd'. I'll work with what I have available.
The lyrics indicate a dull, fidgety, malcontent which craves freedom. We have here a push me-pull you of conflicting traits. This would promote confusion, and likely, in turn, frustration.

While the lyrics don't indicate a specific home advantage to Iron man, black night is a long way from home. Thus Iron man must at least be fighting on neutral ground and could at best be fighting on home soil. Statistically this swings the advantage in Iron man's favour.

My winner? Iron man.
Black night isn't even a tangible thing. You surely can't lose in a fist fight against nothing. Eh?
...Iron man?
...Eh?