If you look closely you can see the resurgence of Shogun. He looked on point against Hendo and was beating the hell out of him, but he just got caught with a hail mary punch that would never happen again. Then the OSP fight, i mean what can you say? He got caught. It happens to everyone. If they had a rematch Shogun would take his head off. Before that he destroyed Te Huna whose actually really underated. He's a tough Light Heavy but Shogun made it look easy.
The point is that Shogun could be on a three fight win streak right now. 4 really if you go back to the Sonnen fight where he just got caught in a fluke submission. That was a winnable fight and i'd still favor him to win if they rematched; espessially now that Sonnen is off steroids (oh i'm sorry i mean TRT).
Add Nogueria to all of the above and you have a potential contender. Lil Nog is actually a really good win. He's been underated since he beat top contender Rashad Evans. Some may point to Nogueria being old as a reason for him not being a legit win, but really Shogun is even older in mma years due to all the wars and surgeries.