Best tuner for towing "09 Dodge 2500 diesel

I have run a tuner on a stock transmission for a long time, no issues. That is because I don't turn it up to 5 and drive the **** out of it. Transmissions break because people crank up the tuner to levels it can't handle. They also take out engines because they over fuel and eat a piston. I have the Edge Juice w/attitude and the CS screen. I run it on 2 settings, 1 (mileage) and 2 (tow). I gained mileage empty and towing. Still on the stock transmission at 165k. EFI Live is very good and gives you multiple settings programmed for your truck. I like the Edge because it has the gauges on the screen. Another that the Cummins Forum people like is the Smarty tuners. Good luck with whatever you decide.