okay i would have made a poll however there a several possibities here.
Justin McCully - he beat hardonk this year, however he is boring as hell but i dont know if hardonk could beat him in a rematch. McCully might have a fight with Kongo the future.
Antoni Hardonk- 0-2 this year lost to Mir and McCully
Brad Imes- i know he has two gogo wins however would he beat the other lower comp in the ufc is the question?
Colin Robinson - lost to Sanchez this year, and i have to admit i know very little about him, UFC 80 he and Hardonk will go to war?
Christian Wellisch- was suppose to take on McCully however got Scott Junk instead and beat him, however Junk needed knee surgery shortly after so that might have something to do with the victory.
Scott Junk- read above.
Honerable mention who imo could beat all of these guys or most of them:
Eddie Sanchez beat Robinson, UFC 79 faces Soa Palelei on the main card.
Asseurio Silva lost to Kongo but has faced much better comp than most of the above.
I limited this to just the hevayweights that have fought under the UFC in 2007.