I used mixed cooking devices including
a Single "Burner" INduction cooktop
A Single "Burner" traditional electric
and Gas
I really like Gas best. As your wife says.> The control is fantastic.. And I often lay out two ways to cook and ask "Which makes more sense"
One: Burn a fossil fule (Coal usually) to boil water to make steam to turn a turbine to make electricity, ship it over miles of wires and through booster and step down transformers and finally pass it through a resistor to make it hot and boil water.
Or: Burn fuel to boil water
Now there are advantages to all 3
Gas. As your wive says Fantastic control
Induction: The cooktop remains cool, if you are say Frying something you can actually lay a dish towl or paper towel on the cooktop, lay the fry pan on top of that and grease splatters or other "Spills" clean up real, real, real easy (I do that, but I have to give credit to Vera Stewart (VeryVera dot com) for the idea)
Traditional Electric Burner: Well. the park includes Electricity free.
Disadvantages
Gas: Cost: Waste heat
Induction: Not all my pots and pans are compatible. If a magnet falls off, it won't work. Likes my cast iron but a bit short on wattage.
Traditional electric: Not nearly the kind of control I have with Gas, Waste heat. Remains hot for some time after turn off (Burn hazard).
But in an RV I'd stick with gas if I could.. but .. Well, More story
When I got married my wife wanted me to get rid of the gas stove the house came with and buy an electric.... 20 some years later when her mother died we were cleaning the house and she decided to fix lunch on her mother's electric... She was having a devil of a time.. She'd forgotten how to cook on one of those things.. She was so used to gas and it's advantages.