My favorites:

Drink:
Orange cytomax (still looking for the elusive cranberry/grapefruit flavors)

Gels:
Gu Chocolate, Espresso, and Orange flavors. Second favorite flavors: Berry, Banana

Electrolytes:
Clif Blocks: Raspberry

Bars:
Larabars: Apple Pie, Cherry Pie, and Coconut Chocolate Chew
Luna Bars: Peppermint Stick and S'mores
Nature Valley: Chewy Trail Mix, Fruit & Nut

Junk:
Starbucks Frappuccino, Payday Bars, Hostess Apple Pies, Planters Honey Roasted Peanut packs