I pretty much love everything I've gotten from beachbody.com. I LOVE Tony Horton - he motivates me, what can I say...so I have power 90 and p90x. I'm also going to be adding some one-off (shorter) dvd's from his 1-on-1 series.
Another program from beachbody that I really like is ChaLEAN Extreme - a nice mix of weights and cardio w/a bit of yoga. Emphasis is on lifting heavy weights, rather than light w/lots of reps.
Most of my other DVDs sit on the shelf and play second fiddle to those three programs, which I've started switching up the order I do them in depending on my energy level for that day and what I want/need to accomplish with that workout.