Where is the option for both? I have a cold home and my ball tank is not in the snake room and instead is in my living room. Its to cold there so I use a uth, che, and a bulb on a 40 gallon tank to keep things right.
In the snake room that is heated with a oil heater its uth all the way for the terrestrial snakes.
My gtp uses a rhp and my pacman has a bulb.
Both have different pros and cons and work better in certain situations. My conditions require using many different heating methods to heat my collection correctly so I don't know how to answer the poll.