Re: Chandler Tube Driver alternative
It's not any of the three you asked about, but the Line6 M5 models the Chandler Tube Driver. It does a pretty good job, IMO, and this is coming from somebody who had the rack mount Chandler back in the '90s. I didn't even buy the M5 for any of it's drive/fuzz/distortion models, but I felt compelled to check them out while using my practice amp (Peavey Backstage Plus), and the Chandler model makes that amp sound surprisingly good. Sounds even better on my main amp (H&K TM18 ).
Just food for thought for you. You may want to check it out. Plus, you'd get the other 99 stomp boxes it models.