Hi,
My husband and I did P90x together 2 summers ago (I think?) and I'm starting it again today. I LOVE IT! It is really, really intense, but it produces results like now (very quickly), especially if you eat healthy and/or follow the eating plan that's included. That's why I like it so much.
I haven't tried Insanity, but I just went through Chalean Extreme. CE is a good program, but I didn't really get the overall results I wanted. I gained a LOT of strength (more than I ever thought I had!), which is always a plus, and I lost *some* body fat, but I didn't get as toned as I thought I would/wanted to. I think I was lifting a little too heavy for my body type and what my goals were. That's why instead of doing the CE maintenance, I'm going back to the program that I
know will give me the results I want.
I've tried other BB products and really, I've liked them all. I have Slim in 6 and Slim in 6 Express and I like both of those as well.
This probably didn't help at all...lol.
Good luck with whichever one you decide to try! I think as long as you do the workouts and eat well, you'll do just fine with either.