Going back to gasser based on needs (need advice)

4.30 is standard with Tremor package.
3.55 is the most common gears paired with the 7.3 and 10spd.

Unless you're towing to max capacity, the 10spd gear spacing mitigates the shortcomings found in transmissions with less gears which creates more drastic jumps in RPMS while towing.

Another consideration is Ford may be trying to squeeze out some more fuel economy with this large displacement engine with higher gears, can't blame them.