JimBollman wrote:
I have never owned an RV with 50 amp service so the question is if you had the choice of plugging into 220v 20 amp or 110v 30 amp, which would better serve your needs?
The simple answer to your
STATED QUESTION which seems to be being ignored is that the 30 amp circuit will be able to supply 3600 watts to the camper, while the 240v, 20 amp circuit will be capable of supplying 4800 watts to the camper.
The remaining answers above are precautions to insure you don't wire either of the circuits incorrectly which would cause damage to your electrical equipment in the camper.