Mir has way more experience, and is a big strong guy. Granted, Cormier has a better wrestling pedigree, but look at how well that worked out for Lesnar in their first fight.
A co-worker and I were talking about Mir, Jones and Cormier earlier. We were of differing opinions to say the least. He was excited about Cormier coming to the UFC HW division and tearing sh*t up.
I don't see Cormier and Velasquez getting too excited about facing each other. Cormier wants Mir and then Jones, and I suggested to my co-worker that facing Mir before Jones could do more harm than good.
He comes over, loses to Mir... DW will be a lot harder pressed to just give Cormier a LHW title shot at Jones. At 230lbs, I think Cormier could make LHW with little difficulty, and would be a big, strong LHW come fight night. I don't think DW would hesitate to offer Cormier an immediate shot at Jones, and taking the fight with Mir first is a risk that could backfire.
I understand Mir is hit or miss at times, but when he's on his game, he's dangerous. There's no doubt that Cormier could put Mir on his back, but if Mir gets a hold of a limb, he'll have no hesitation to break it. I may be in the minority, but I think Cormier will have a lot more difficulty with Mir than he believes, and it wouldn't surprise me at all to see Mir win.
In my opinion, Cormier has a much easier time beating Jones than Mir.