etnoziroh, What do you mean by "Hi end crunchy" distortion?
Also, to answer werner's original question, I believe their are people here on the board that have achieved good results from both software and hardware modelers. The key is to have proper expectations. If I were going to go into a high end studio and paying for studio time, and had their whole range of mics and pre amps available, I would definitely use a real amp. For demo/project quality recordings, I think modelers work great. As to which kind to go with, I guess it depends on your personal equipment situation. Do you have a high powered computer system? Because it has to provide all the processing power for a software based modeler, as well as power your recording software. Hardware modelers handle this instead of your PC.