Well, I knew that Oz was going to be immensly strong but the Straw Hat Crew was nothing against him.
Well, I'm not trying to go against your argument or anything (since this chapter OBVIOUSLY delivers the fact that they go owned by Odz). HOWEVER, I don't believe that the Strawhats ever really put their all in this fight. I'm sure this is just a tactic that Oda is using to create a twist or suspense in the fight (sort of like zoro's fight). It's probably safe to say that judging from the minuscule attempts from the strawhats, non of them really fought to the best of their abilities. I mean come on, Chopper doesn't even touch a rumble ball (Monster Point?!), Robin barely moves and for god sakes, Bruck did nothing… not to mention the fact that they took Odz on one by one... wth happened to teamwork?!