I liked the Lose it! Tone it, which I started out with. Fit Flex & Fierce was good too. I've also done both the casual and the moderate yoga programs, but I didn't find them that exciting. Brazilian Booty Butt is great, but maybe wait a while with it if you're a complete beginner. Now I'm doing the Slim & Trim Boot camp which looks good but I've only done a few workouts so far. I've also started the Abdominal Foundation (Casual) and Lower Back Pain Relief but not done any of the workouts yet.

I started with the one for the low-back pain because I needed it for work, and I also had started with Abdominal Foundations I. Now I am doing 2 programs...Strong and Toned Arms I and Abdominal Foundations II.
I think they are great for beginners that do not know where to start, and therefore need some guidance. I, for example, need that guidance still specially because I still have only 5 weeks in here.
So far the Abdominal Foundation II is proving to be a bit of a challenge, which is great because now I know where I stand in terms of my fitness level. I know I wont be able to do any "intense" level workouts if I don't get past the "moderate" level at least with this program.
I can't wait to try the beach body program once I'm done with the 3 levels of my current programs. :)