The infographic is interesting. I think your conclusion is a bit overreaching though.
Originally Posted by ante_up81
Incomplete data: This is just 2012. To get a better handle on it, you probably want to go back a few more years.
Decision != boring: Decisions and tedium often happen together, but not always. At the extreme end of the scale, you get fights like Chan Sung Jung vs Porier, Dan Henderson vs Shogun, Jim Miller vs Lauzon, or Varner vs Lauzon, or Ben Henderson vs Anthony Pettis. Even if you disregard the fight of the night winners and epic wars, plenty of fights that go to decision are pretty damn solid (or at least they are good enough to not suck the life out of the card).
UFC Only Data: How are fighters from each of the camps doing in the other significant promotions? What about Bellator, Strikeforce, OneFC, etc?
UFC Fighters per Camp: Some fight camps have big teams and some have a high concentration of champions and contenders. A camp with 70 fighters in it is going to have crap percentage compared to a smaller camp centered around a very small group of 2 or 3 elite guys.
Also, most people are only going to give a flying **** about guys in the top 10 in each division. If you were to find out that Greg Jackson has a 80% finish rate for prelim fighters, no one would still care. Condit and Guida each had ****-tastic main event fights and GSP still goes to a decision (because somehow GSP is a Greg Jackson guy despite training almost entirely out of Tristar). Jon Jones doesn't count because Whargarrble.