When you assume, you make an *** of you and me.
there is no reason to think that, having absorbed the DBs, goku is as powerful as odin, and you didn't even give a reason goku should win.
As for contradictions, I'll handle them in the order asked.
1. Spiderman is 40X faster then a normal human. Charaters like batman, with years of training, have reaction times faster then that. In adition, characters like that and predict when he will move, so they apear to move faster then they do.
2. It's entirely possible batman can shatter a tree, considering he has mastery over 127 difffrent forms of martial arts and it almost as strong as Cap. America. Darkseid = Jobberseid but still he's allways holding back when he hits batman, that or batman's wearing a mother box which would make him destinctly superhuman.
3.Superman moveing at lightspeed can often cause drastic damage to the enviroment, ala Shockwaves, so he dosen't do that. However, I can't think of one time that he's been hit with a rocket, exsept to prove a point, or was completely focused in the other direction.
And FTW, All laser beams move a light speed. They are composed of light particles, so it would break General Relativity to go any slower.
4. He's not hiting them with an adimentium chair.... Regardeless, He has no enhanced reflexes and strength. That's all just his training.