Nobody suggested the Nick Crow 7170? I think it's quite good, but must admit I can't say if it's THE BEST. But worth the check, that's for sure, since it's free.
the 5150 of TH3 is really rad. i´m usually a Dual Rec fan but that one is my new go to amp model. but TH3 is in a different price league because it has a whole lot of amps and cabs and effects and great tweakability, especially in the cabs. but it´s very worth the price imo.