I'd say that my top three favorite decks thus far are:
Ellusionist's Viper Deck
D&D's Steamboat
David Blaine's Gold Gator Backs
Ellusionist's Viper Deck is very durable and holds up to a lot of play (I'm still using the same deck that I bought three years ago). With that said, it is thicker. D&D's Steamboat deck is the best for it's old fashioned finish and is also quite durable (the stripper version is amazing, which they no longer sell unfortunately). Though, the cards do tend to keep their shape easily if bent. David Blaine's new deck (released just this last month), is extremely slick, aesthetically gorgeous, faros beautifully, and the QS can be used for an impromptu forced Gypsy Queen routine.