Baker looked shit at the 96 O. He looked AMAZING at every Ironman he competed in. I'm a huge fan but I found him a little obnoxious in the BFTO . . .
Your observation is very accurate - I too was literally rolling my eyes at Aaron's 'performance' in the BFTO. I mean, I know it was pre-contest and all, but I think he was being way over the top saying stuff like, "Why is the ceiling moving?"

Robbie (Robinson), who was doing the same weights didn't scream and moan like Aaron was doing the whole time - Aaron could have learnt a thing or two from Robbie.
That being said, I think that Aaron was very similar to Ronnie - he had a lot of freaky bodyparts and was supposed to be quite strong with his lifts (I 'know' this through hearsay only). And just like Ronnie, Aaron was horrible at hitting poses and exerting muscle control. He never tensed his abs or posed to show off his strengths (of which he had several). His relaxing his abs during his routines and the mandatories probably cost him a few placings. I reckon he should have just stayed focused and improved ala Ronnie and he would have been given his due in time. Physiquewise, he could have gone to the top had he put it all together.