Skaar gets his sword & HM gets his usual equipment
Who wins?
Bonus question?
What's the more powerful attack; Skaars 300 trillion ton punch on Hulk or Hawkmans "I just hit you with a planet" strike on Superman with the Claw of Horus?
Skaar has the power and strength to win this at first glance, and although he was born into a hellish situation, and forced to fight daily for his life on a barbaric world, his years of battle are in question. Hawkman is likely the more more skilled of the two, but I'm not sure that I would give him the majority. Skaar should win, if he can hit him consistently.
As for the bonus question.
One feat was quantified, while the other could have been hype.
Skaar also knocked the Juggernaut into space with less than he prepped when he hit the Hulk, so there is also that. If we were to determine distance as a sign of power and all of that good stuff, and add in the destructiveness of how much damage Superman caused when he landed, we will likely come up with less than world shattering forces that actually hit Superman.
Well in order for it to have been Earth Shattering he should have shattered the Earth, or been driven to China like he was when Bizarro hit his body, while he was Bizarro. Superman and Bizarro switched bodies, and Superman's body while being possessed by Bizzaro's brain, and was punched through the Earth, and came out in China. Just wanted to explain the reference, in case you missed the comic.