I actually favor Ortiz in the Berto fight Ortiz is a physically great boxer, technically sound. It's mentally where he's unstable
Acosta is not even the favorite, Rios is. Can't really argue with the odds though as Acosta's activity is too low and he's 'too visitor' to get a decision whereas the KO can come on both sides, and brawling with Bam Bam of 15lbs heavier won't be very smart for a guy who has been knocked out before. Acosta can always try to pull a Maravilla - he's got both the power and the goods, very underrated fighter - but Rios is a bit better on the D & applies smarter pressure than Antillon which will help him seeing the cards if necessary. So looking at all outcomes and politics, odds in slightly favor of Rios are understandable. Speaking of upsets, I wouldn't consider Rios/Acosta, Dzinziruk, Winky or even Ortiz winning an upset, these fights are close and competitive, upsets occur in seemingly one-sided fights such as Shane-Pac or Mayorga-Cotto.
Wow so i guess the bookies see it better than the fan boys. If you asked around most forums it sounds like Acosta has no chance. Lately he has picked up some steam but i think thats only because of his insults at Roach and the warm hearted fan wanting justice. Well then Rios would be the safer bet if they are pick em. If all else fail im sure the decision will go his way if its remotely close. Acosta needs the TKO in my opinion. Which is not out of the question though. Hmmm i think i got my money on Rios but im rooting for Acosta so i win either way. haha