Do you have the opportunity to play any or all of them? The as73 and the af75 both go for $450 new right now. The new saddles might be nice, but I don't know if those models are known to break strings at the bridge or not. I also don't know what styles of music you tend to play. I would agree with Zip, though. There will be a pretty significant difference between the semi hollow body and a full hollow. Just as an example, the full hollow is an inch deeper than the semi hollow.