I too have used both in the past. It really depends on what coupons are of more value to you. For example, last year Northern Lights worked better for me. This year, Toursaver will. Toursaver has a 2-for-1 flightseeing coupon form Talkeetna that Northern Lights doesn't have. That alone will save me $250.

Look at all the offers from each book and see which is best for you.

Also note that with toursaver, you must present the entire book when at each vendor. That is not true with northern lights.

Also note that if you are going later in the summer, you might be able to pick up a used one on EBay. In fact, if you are going after July 1st I would be willing to sell my toursaver at a discount depending on which coupons you might need.

John