I was thinking about this as i read someone put their top heavyweights list in this area. Why not just have a entire area for Rankings to be discussed. I would imagine it would over time get as much attention as the mma dream matchups do.
Smoogy puts out rankings every couple of months as does every other site on the net, along with many other users posting their own rankings.
I would imgine some posters like myself don't post their own rankings just because there is usually always one or two threads about rankings.
Its not a probelm by any means however i think it could warrant its own section.
The probelm i do forsee is people arguing over their rankings compared to someone elses however for the most part, there are only good discussions.