I'm new to the frequent points game. I'm taking my family (4) to Lake Tahoe from Dec 20-26, 2012. We are planning on staying at the Marriott Timber Lodge. I'd like to fly us on Delta 1st class but only 3 tickets left? The Marriott is going to be over $5,000 for 2 villa rooms. What is the best way to get the most points. I have AMEX Platinum, Amex Gold Premier, Citi Thank You Premier, Chase Sapphire & Chase Ink. Any help would be greatly appreciated. Thanks.