Which Fitness Program Gets You in the Best Shape?

When you set your New Year's resolutions and tell yourself you'll lose weight or achieve some level of fitness, what strategy do you employ?  Looking back on my 2011 fitness goals, I realized I'd unwittingly put myself through 4 different fitness routines, each with varying results.  If I break last year into quarters, I can safely say that the first quarter was an experiment with CrossFit, the