Parris is great at one thing and good at many. Add in that you aren't going to find a more athletic heavy this weekend.
The Iranians are great at one thing and good at many. Zare won't be as athletic or fast and might not be as strong.
I hope I prove you wrong. If you are correct, I will tip my hat to your know-all.
Just know that in the last few years these are the results Deng had against the other 'Big 3' Heavies...
Lost against Akgul via 5-0 Decision
Lost against Zare via 3-0 Decision
Lost against Petro via 5-2 Decision
Parris just beat Deng via 5-0 Decision.
Using Steveson as a common opponent...
Beat Akgul via 8-0 Decision
Beat Petro via 10-8 Decision
Beat Parris via 6-2 Decison
Beat Parris via 5-0 Decision