I talked to a RV Hauler(with CTD), his comment was the only one he wouldn't buy himself was the Sandpiper.
As far as height, my Jayco is 12 1/2 ' because I fliped the axles, and changed to 16" wheels. I do use a deflector but don't find any problem with wind. (12,000 lbs. )
Other than a couple of the most expensive trailers, bedrooms come 4', 5', or 6'.
The living area varies depending on mfg.
My findings are;
Alpenlites are heavy
Here in the north, aluminum framed is not desireable as temperature variences in a day are drastic, and aluminium moves in the walls.
In one day we looked at every brand available here and one stood out as it was a hot day and only one trailer was cool inside. It was made in Canada, and insulated for the local climate.
My fifth is as heavy as I would like to pull with a 2500. And with my approximately 250hp/650 torque, pulls it very well.
If you will use a few times a year, find the best buy, so when you quit or move up, you will lose the least in depreciation.