Hi!
I'm about to rent a car for 4 weeks to our upcoming honeymoon in june. It will be a LAX-LAX roundtrip, thru Palm Springs, Grand Canyon, Las Vegas, Death Valley, Yosemite, San Fran, Highway 1.
This is a variety of terrains and climates, but we will not do any off-road driving...
Traveling is just the two of us, and 2 large suitcases and a cooler box with some drinks.

We have narrowed it down to either a Premium or a Midsize SUV. There are not a big difference in the price, about $100, Premium is the cheaper, though the SUVs are probably a bit more thirsty...?

Which of these car classes will give us the best experience in terms of ride comfort, view out of the car and makes us blend in (we don't want to drive an easily-spotted-fully-loaded-tourist-rental-car to break in to)?
The American experience is worth quite much as well

Thanks!
/John