Chael Sonnen has historically had a hard time with BJJ and submission specialists. I think depending on his confidence level he might just be the younger version of Dan Henderson (without the right hand) and with the right plan takedown and GnP to a decision victory.
I think the general consensus is that Hendo or Randy have the best tools for defeating Anderson. But that doesn't necessarily mean that it they are favourites to win.
Does your self described Hendo Jr stand a chance? No.
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I don't have favourite fighters, just favourite fights.
<3 Arianny