At whatever the most appropriate weight.

The only division they both fought at was 130 and I think its fair to say based on what we saw from both guys at that weight class, Marquez takes it.

Nate is a much better and stronger fighter at 135 it seems, though I would have great confidence in Marquez' skills and toughness, though it its a very hard fight.

Nate got ko'd and Tko'd by Peden, a common opponent marquez wooped on. We can never compare fighters in this same respect but I do know this. Nate does better vs come forward fighters most of the time(Diaz, kid diamond) and he is a bigger fighter. Marquez is a natural counter puncher and nate has trouble with these type of fighters. Although Marquez is long in the tooth, nate is no teenager, I still take Marquez by hard fought UD.

I actually like Marquez's chances here, he's an extremely live dog here, and not by much. He has a boxer's chance, as he's probably the more technically proficient of the two, and Nate is no slouch there. The main thing is whether or not Marquez can handle the punch (and a powerful punch) of a true lightweight and whether or not he could make Nate respect his own power. If not, then Nate wins by forcing the fight and pushing around the smaller Marquez. But Marquez has a more than excellent chance of outboxing Nate over 12 rounds, but he'd have to really be on point.

Heh, now I want to see this fight, it's really intriguing.

Is Kid Diamond the hardest puncher Nate fought?

nate campbell couldnt hang with robbie peden...what makes you think he can hang with j.m marquez.....

I don't get how 130 was the only division thy both fought at. They both fought at 135 too. This is too close to call. Nate could still punch at lightweight and he has skills too. JMM would have a harder time landing on him than he did on Diaz, and he'd be getting hit harder by Nate in return. I loves me some JMM, but I really am not all that confident that he can be as effective at 135 or higher as he was at 126 or 130. I think he was clearly a better fighter at those weight classes. He's had great success in 2 fights at 135, but he had shaky moments against Diaz, and his legs didn't look as good in either fight at 135 as they did at 126 or 130.

And to those analyzing this matchup based on Nate and JMM's respective results vs. Peden, all I have to say is HA!

This fight isn't as simple as JMM whupped Peden and Peden KO'd Nate.

I'd also add that the only reason Peden KO'd Nate, instead of the other way around, is that Nate got too cocky for his own good after hurting Peden bad to the body in their first fight. Had Nate simply finnished the job (which he easily could have done) there never would have been a Campbell-Peden II (which was not the world's greatest stoppage). Peden didn't beat Nate because he was a better fighter. He beat Nate because Nate did something that was stupid.

I wondered about the 130lbs statement also. Nate losses though.

JMM hadn't yet fought at 135 when this thread was started.

I think Marquez guts out a tough UD at LW. TKO10 at 130

Campbell is, I feel, a more difficult fight for Marquez than some here are predicting. He can hit, he can fight in or outside, he's gutsy, strong, & not a stupid fighter.

He does have his limits, though, & Marquez is oh-so-good at exposing those in his opposition. Marquez via competitive decision. The weight suits Campbell more.

jmm clear decision 8-4 or 8-3. too skilled, would counter nate do death with combinations. maybe late stoppage