Bests Cards by Spending Category
From DansDeals.com Wiki
Charitable Orgs
Chase Freedom - 5x (thru 12/31/11)
Department Stores
Chase Freedom - 5x (thru 12/31/11) Amex Blue Cash - 2x
Dining
Chase Freedom - 5x (thru 12/31/11) Chase Sapphire - 2x
Gas
Amex Gold - 2x Amex Blue Cash - 2x
Groceries
Amex Gold - 3x Amex Blue Cash - 3x
Movie Theaters
Chase Freedom - 5x (thru 12/31/11)
Travel
Chase Sapphire - 2x