Pettinhouse is not bad for guitars. I have some of their samples. I sounded like all the strumming samples are only down strumming. It's difficult to emulate up and down strumming including all the variations/noises etc. Probably one of the best for strumming samples is MusicLab's RealGuitar. Even with RealGuitar, it's a far cry from the real thing.
I have VSL's Concert Guitar. Pretty realistic. But still not the real deal. Very close when playing plucking. Strumming - not easy to emulate.
For Les Paul, the ultimate library is Prominy's LPC (
http://www.prominy.com/les.htm). Hard to beat it. But...still not strumming.
Keyboard Assasin: The Keyboard Kill The XXX Thread!!!
