1st Time buyer needs advice: t.t. or 5th wheeler?

first, not sure what RV would have 3 separate beds for 3 adults to sleep in. someone would have to sleep on a sofa bed and dinette.
there are some Class C's with two beds in the bedroom and then someone having to sleep on the sofa or dinette in the living area.
second, you need to post what you plan to tow with. some trucks that can tow the TT, wouldn't have the payload for a 5th wheel.