UFC: Anderson Silva vs. Georges St. Pierre or Anderson Silva vs. Mauricio Rua?

Of course, everyone in the MMA world is now talking about a mega-fight for UFC middleweight champion, Anderson Silva.

Two fights in particular have come about: The heavily discussed matchup against Georges St. Pierre and a possible matchup of Silva and UFC light heavyweight champion, Mauricio "Shogun" Rua.

Two dream fights, three of the top fighters in the MMA world and millions of fans clamoring for these fights.

These fights would become ultra huge, pay-per-view record busting events. A Silva versus Shogun fight for the UFC in Brazil fight card? That would be enormously huge.

Or Silva versus GSP in Quebec? Yet again, huge.

The better fight out of these two dream fights has definitely got to be Silva vs. Shogun.

A fight between those two would be much closer then a fight against GSP, who would have to come up to middleweight to fight. GSP has never fought outside of welterweight.

Silva vs. Shogun would be immensely close, containing two of the best strikers in MMA. It would be interesting to watch these two slug it out.

Shogun has never been knocked out in his MMA career and Silva does possess knockout power.

Anderson contains one flaw that would spell his demise in this dream fight, his takedown defense. Shogun has great takedown skills not to mention a very good ground game.

Don't let age fool you either: Silva (35 years old) versus Shogun (29 years old) both fighters are at the top of their games. 

Anderson should move up to the light heavyweight division. In his light heavyweight fights, he has still looked good.

There's no competition left for Silva really at middleweight. A move up to the light heavyweight division would signal whole new challenges for Silva.

Either way you look at it, it's a fight for the ages. Whether it's Silva versus GSP or Silva versus Shogun, you still have a top fight on your hands.

And again, either way you look at it, GSP still has to beat Shields and Shogun would still have to beat Jon Jones.

But these mega-fight dreams are fun to think about, especially when you put two fighters in the ring like Shogun and Silva.