Re: Choosing a slip at the Marina
The second choice is the worst. When the power boats start moving about there will be quite a bit of wave action (even in a no wake zone) and your boat will be rubbing up against its fenders and the dock. Eventually you will see the results of this. Also, with the cost of fuel, you will probably find those house boats don't go out very often and become a venue for beer parties. The noise will get to you over time.
If you want to do any work on your boat while it is in the water, you will need electricity. Water can be carried in, but not 30 amps of AC. Also, keeping your batteries charged up with shore power is great for weekenders.
If you can get the prevailing winds on the nose or stern you will be much more comfortable while you are in the slip.
Marina operators are not always up front about what slips are really available and try to sell the least desireable first. I don't know how you beat that one, but maybe some long termers can clue you in.
Have fun sailing,