There are a lot of important differences functionally inside the 22 sport vs the 19. I suggest visiting a dealer with both models and really spend 10-15 minutes in each one.
The 19 has the dinette in the front window which offers nice view while eating. It has an option for a propane oven, and it has the lavatory sink outside the bathroom.
But it has a small toilet/shower room such that a user needs to angle the legs while on the throne, and the bathroom is not as roomy.
It has a narrow bed that is a bit on the short side.
Being a non-spoort, it has windows that fully open out and a rear bumper.
The 22 sport (which we have) has a larger bed at 54 wide, so markedly winder than the 22.
It has the bathroom in the back with enough room in it to towel off and get dressed in privacy. It has a window that opens in the bathroom.
The dinette has a a curbside window, so not quite the same view as the 19. The 22 has better kitchen counter space. The 22 does not offer an oven, only a fancy microwave with the 2 burner gas cooktop.
I am not sure, but I think the 22 has a larger closet.
These are pretty substantial differences, so I think it is important to really understand them.