I enjoyed the first five seasons of this show, but after Bobby left and they started to add more lame Hanna Barbera SFX, that's when the quality started to slip with me. I also enjoyed some of the older contestants better, especially Carla and Jamie, both of whom were funny and likable.
Also, Alton Brown was better on Good Eats rather than this, bring back Bobby Flay, or heck, the great Robert Irvine, who was also a good host for season 2.