One of the problems with styles the total amount it would take to produce all the Clapton ways of playing a guitar. There are only a few styles that are Clapton. And they all have jazz overtones in them. Not beating jazz up here Mates. It's just the way it is. But things are getting better all the time.
Norton has a lot of good styles for both PC and Mac and, if they're still in business, Finetuned makes styles also, so the sky's the limit. Also, I'm not sure but Coyote Forte may be available for the Mac. If it is it's only $40 and sounds fantastic.
There is a however to all this. Concerning the jab that was thrown at you about Mac's changing its OS, that could easily be true. That's the main reason the Mac version is so far behind the PC. When Mac changed its OS the whole Mac version of the software got put on hold. As mentioned it is a very stable OS now and they are coming out with a new beta version of BIAB soon. So don't throw your Mac away just yet and go running out to buy a new PC. Just be patient and wait and see what the Pg team comes up with. The Mac, as far as operation and power go, is the better computer over all. But it's still lacking in much needed software that the entire industry isn't providing for it. One of the reasons, I suspect, Steve changed the machines over to Intell, so as to be able to run a double OS side by side. (Smart move there Steve)

Do check on the Forte and see if there is a Mac version available. It uses gigasamples for its sounds. Most are fantastic. Some I don't like. Since I'm a PC user I have the Real Tracks and have real instruments available for creation.
Hope this is helpful to you.