Half Marathon Training Program Recommendations

Including March's half marathon, I will have trained for and ran nineteen half marathons. I've used Hal Higdon's Novice and Intermediate training programs, as well as a number of programs for Runner's World. My best half marathon was during a marathon training cycle.

When it comes to marathon training, there are a lot of great plans out there: Pfitz, Hanson, are two favorites but there are many others. But I don't feel like a half marathon training program stands out as prominently as these do. 

For my April and May half marathons, I'm planning to do a similar program to the one I'm currently following (Runner's World Smart Coach plan), but I'd be curious to hear what other people's favorites are. I like Runner's World because they allow for two hard workouts a week, which make it easier for me to switch around training runs as necessary. I usually have to space speed work and long runs 3 days apart to keep from breaking.

So what do you use for half marathon awesomeness???