[Commanderwiggin]

There's a lot of different factors and the "best" tune depends what you're after. For me the best tune was from my long time tuner at Bend Calibration who spends the time to hone the whole car to what I as the customer am looking for and in a safe, reliable manner. Even though BM3 was available for flash tuning, based on my interest in running true flex fuel Ecutek was recommended to me. Needless to say I continue to be impressed by the improvements to my throttle mapping, power, and drivability. A canned tune is sometimes what people like...for me it was a complete, bespoke tune for myself.

OP - Paul Johnson, Halim Cazimi and Cary Jordan are the most well known and obviously their history speaks for them so I think you should choose the tuner right for you.