Those odds are tempting but have to go with Bisping. He will use his speed to avoid Akiyama's slow punching and takedown attempts and outpoint him to a decision win. Akiyama is too willing to stand and brawl and will lose the fight because of it.
These odds are simply wacked but I loves it- Bisping is a pure out-pointer when it comes to fighting and, granted, it gives him a decent shot in this fight. But those odds make the play simple as Sexyama can actually out-point Bisping and has a much MUCH better chance to end the fight than Bisping does. Bisping cannot rock Yoshihiro like Leben did and Sexy has more tools all-around than "The Count"- Sexy will get the advantage in the stand-up and get enough points via Judo-throws taking Bisping down to secure the win. Bisping will be able to get up after being taken down but Sexy will out-point him there and in the stand up. Book it.
Akiyama barely beat Belcher and lost to Leben. He has a bad gas tank and is a slow telegraphed puncher. Bad qualities when fighting a guy like Bisping who is going to use speed and reach to pick him apart and tire him out. Akiyama has to take him down and hold him down, something I am not sure if he can do.
Akiyama's last fight was 3 months ago. If you're really expecting drastically improved cardio from him, you could be disappointed. It takes a longer than that to build genuinely good conditioning. I see Bisping out-pointing Akiyama for 3 rounds, maybe even finishing him in the 3rd when Sexy ultimately gasses. 20k on The Count.