Interesting looking at the Sagarin ratings
Going by his ratings, UCF is by far the best G5 at #21. SDSU, UH, and USF come in at 36, 37, and 38 respectively and UH has played the toughest schedule out of all G5 contenders to date. His current predictor has UH finishing ahead of both the other two at this point.
Looking at his conference rankings, the AAC West is the 10th best division/conference right now, ahead of all other non-P5 entities. The MWC Mountain (the division that SDSU is not in) comes in next, but the divide is about as big as the divide between the AAC West and the SEC East. The MWC West, the division SDSU is in comes in at 16, while the AAC East comes in at 13. That's what will kill SDSU down the stretch.