The RFE transmission alone makes the 5.7 worth the higher cost of admission over anything 5.9/46RE

I have a 4.7 quad cab, 2wd, RFE and 3.55 rear end. Its nothing special by any means but having also driven comparably equipped 5.7's I wasnt blown away by the extra power and needing/recommending 89 octane, -both engines still have to spin the tachometer before they come on-

I have done a couple semi local flat tows with it, nothing over 6500. You know its back there for sure. gas engines just dont have the lower end, everything is tuned for HP and marketing fluff nowadays.

The 5.7 has a fairly robust aftermarket. The 4.7 kinda came and went w/o any notice.