Mammoth (DC) has a decent amount of super strength, but he’s nowhere near Colossus level. Colossus has the edge in raw power and that’s before his Phoenix power up. Mammoth is no weakling, but I’ve never considered him to be much of a power hitter. He wasn’t very impressive in the Teen Titans show and I have a feeling that the comics wouldn’t change my mind either. Still, Mammoth has made his way onto the blog and you never know what can happen from there! Colossus wins.
DReager1.com 
Because of the way you judge these battles, I agree that Collossus would win since he has the Phoenix Force amping up his power. However if the fight was just the two in standard utility, I feel like Mammoth would win. We’ve seen Mammoth crush metal before so while Colossus is tough I feel like Mammoth’s strength is just surperior
Can Mammoth do this? http://i114.photobucket.com/albums/n277/magneto1166/World%20War%20Hulk%20X-Men%202/WWHulkX-Men2-14.jpg
IDK for sure but I wouldn’t be surprised if he could
Yeah, composite gets pretty crazy like that. Colossus has some pretty good base feats as well though. He was once able to shatter an ice barrier that Wolverine, Dr. Strange, and Storm could not with their combined might.
Since Mammoth can crush metal, at least it means that he’ll be okay with punching Colossus as some characters injure their hands that way. His strength should definitely be enough to easily keep up the fight and it would be a fun battle.
You seriously believe Mammoth is on par with the ultra-OP World War Hulk?! No way!
I didn’t say that. Just because a strong character can do something, doesn’t mean a weaker character can’t do the same thing!
Fair enough. I still say Colossus.