Boxing is screwed. You get bullsh*t decisions. The best fighters avoid fighting each other. They charge sh*t loads of money for fights (as specially you americans who get robbed in my opinion). Every fight is based around money and not Grudges or fighters wanting to be the best.
I myself have found UFC a breath of fresh air in that department. You always get the best fighters against each other and there is no where near as many dodgy decisions. UFC is not as exciting due to the ground game but at least there is no where near as much corruption and the titles actually mean something.
Look at Cleverly and Warren. They were told they had to fight a guy ranked 10th in the world for the title defence but they winged it and mannaged to get a title defence against a guy ranked 40th in the world just to protect Cleverly. How does a guy ranked 40th in the world deserve a shot at a title.