All good points of input from BurbMan. Two others that jump to mind are accessibility and surface. Is it concrete? Overgrown grass that houses critters and snakes? Also, what does the back-in look like? Is it tight up against storage facilities and between two long trailers, making access difficult, or do you have more opportunity to straighten out and back in?
Our current lot has been good, but I grow tired of having to have a spotter with me every time I park it in order to avoid getting out 5 times to check my blind corner while backing in on an angle.