I use Podfarm in ProTools 11 using this aax wrapper and works perfectly!
http://www.ddmf.eu/
It wraps an AU version of the plugin. It has never crashed or caused any problems.
I went to Amplitube also but Pod Farm is much nicer. I am so happy now i can use pt11 and podfarm
AAX would be the ultimate solution, but in the mean time... this is amazing