I go for the clif bar almost every time.

I'm addicted to the carrot cake, even though I actually think it's kind of gross. The gargantuan white chocolate/macadamia pictured above is much better. But an addiction is an addiction.

Pro Bars are also pretty good, but expensive. If you can find Pemmican Bars they're fantastic! They taste really good and are super calory-dense; a single bar is basically two clif bars... This can make them easier to pack for long rides.

But I still just eat Carrot Cake Clif Bars pretty much.