Hey. I can't speak to the Fortin because I have never heard one. I can say that the Friedman with the Saturation switch in Brown Eye mode is dead nuts to a Cameron Jose mod. I have had Pschodaves old Jose here as well as several others. I just sold a high gain/low gain Cameron because it was so close to my Friedman. It was killer but I don't need two of the same. 232cap just got a PT100 and we had it side by side with my Friedman and the difference to my ears is this. The PT has killer bottom end and throw with a super close Marshall vibe to it. In comparision the Friedman has a smoother less grainy feel to it but is definately thinner compared to the PT. The PT has a slightly modern tone about it, not in a bad way, and the Friedman is pure hot rodded Marshall. They are two different animals so I think you would be happy with both together. Shit I wish I had a PT now hearing Arts because it wouldn't be redundant. That's why I keep my Uberschall, something different.
based on the clips I have heard, The Fortins can go into the modern territory quite nicely and might be closer to the PT at the end of the day. Not sure though.