What's your favorite card game?

My favorite card game is Freecell. I am so addicted to freecell I had to get a portable one. For me its just amazing and it makes my mind work to solve it. I play alot of the other card games too like Speed, Poker, Hearts, and Spider Solitare. But nothing compares in my book to freecell. I went on vacation to California during the first week of Augest and in the hotel all I would do is sit on my dad's laptop in the 115 degree heat and play freecell.