There is no such thing as best tune, different trucks with different PCM strategies and mods will react slightly different, not to mention different personal driving habits.
I've got race and tow tunes from Gearhead, Innovative, Quicktricks and older tunes from DJ's (Vivian's). I like all my race and tow tunes, but each one has its own characteristics.
This is where custom tunes come in, you can get a tune, test it out and if there is something you don't like, have the tune writer adjust to your liking.
Some prefer early TC lock up, some prefer late TC lock up. Early fuel, late fuel. Higher or lower shift points. Higher or lower trans shift line pressure. VGT open or closed at idle. Light switch effect or progressive. Jake brake or none. Might be some I missed.
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2004 F350 CC DRW King Ranch
X-3 tunes by DJ'S,QT,GH,ID. Gryphon FICM tunes, ARP studs,Stage 1turbo,ATS coolant recirc lines,Swamp's 48v ficm,coolant filter,AD2,Snow Perf stage II,EGR delete,4" turbo back straight pipe,S&Bintake,Quad "A" pillar autometer gauges,Suncoast Tri Disk Conv.,Billet input shaft,Suncoast superduty rebuild kit,Trans-go shift kit,Mag-Hytec trans pan,CFM+ elbow,ccv mod,15K reese 5er,17" LCD TV/DVD,Cobra 29 Nitewatch CB