@jayc1324: i don't think it is so important that he could break 2 of the superman's ribs..since he was still more than capable to fight,infact he was punching wraith so fast and so hard that he has lost his breath and he was forced to use his k-nite powers in order to turn the tide.Then in the end they have fought again in the core of the earth and if wraith was so much faster than him he could've avoided some punches and he could have hit him more,but he hasn't,he hasn't since the gap between them wasn't big enough that it can't be filled by skill and "gear" (..i mean the cape)
Wraith is more of a good soldier than a Villian.He clearly did not want to hurt Superman.He has all the info on his strength and weakness from general lane and then some.It was more like teaching and training Clark to be a stronger and better than himself.The fact that he had all his powers and did not even use it to his full potential told you he was holding back.
I hope in the end Wraith becomes more of a mentor than a villain to Clark.
Keep in mind also the Clark also use the ring in the Earth Mantle on Wraith.A lot of you on here miss that in the comics.Remember he put the ring in his throat and left him on the ground.
when he has put the ring in his thorat wraith was already subdued.
@jayc1324: ..mm..looks like we have read a different comic then, because Superman was getting the upper hand in su # 8 when he was punching him into the moon.Superman has even stated that Wraith was fading away,infact he was forced to use his K-nite power to break supes's momentum.Wraith's extra powers were clearly his main advantage not much like his superior strength and speed (which probably weren't so much greater than superman's anyway). I'm m not telling that being stronger isn't useful but of course it isn't a determinant factor to win a fight as we have already seen.