Apples vs Oranges
Comparing yesterday's or last year's 3-round fight to a what-if or future 5-round fight is still Apples vs Oranges
Every single aspect of these fights--the fighters, preparation, conditioning, game plans, each fighters physical/ mental state--was designed for 3-rounds. Even when fighters wholeheartedly believe a fight will end before the final 3rd round bell, they have still essentially focused 100% of preparation for a 3 round fight (even if it's a poor fighter's plan 'c').
The Contender's Suspenders
That's my reason for the new 5 rounders.
In my opinion there is only one reason for 5 round fights is simple math. A 5-round fight as the main event/grand finale will attempt to make up for the fact that MMA fans used to watching championship fights in THREE good organizations will now only see them in ONE great org.
I understand WEC brings new weight classes, and strikeforce brings Y chromosome championships. But the fact remains there are more fighters fighting for fewer belts.
I think we will see more #1 contender fights as main events and fewer revenge/grudge match main events.
Add two rounds and some marketing and the majority of MMA fans could very well be happy. I do not think this forum is a fair sample of the majority of MMA fans (meant to be a compliment).
To satisfy the majority of said majority, I propose the #1 Contender winner be crowned with the "Contender's Suspenders".
Then the gatekeepers can argue over who should be wearing the suspenders.