Tow Vehicles

[rcnight]

I know much has been written on the subject, just wanted to get some specific feedback from f150 owners. I'm looking at used ford f150s, auto w/either the v6 4.2 or v8 4.6 liter engines to tow my 20'SF with galvanized dual axle trailer. Is there that much difference in towing performance for Florida use? I don't usually go to any really bad ramps, never had any trouble w/my V6 Explorer(except when the doors locked and I didn't have the code on a busy Sunday afternoon). My very tired 300k mi Explorer won't make another season.