I did Jenny Craig years and years (and years!) ago. Lost over 70 pounds in 5 months, which is way faster than I'm losing now (but then, I'm no longer in my early twenties) and kept it off for about three and a half years.
While I haven't tried Bistro MD, if it's equivalent in price to JC meals, I'd just go with Jenny. Believe it or not, there were some meals on the Jenny Craig plan that I still
miss (chicken in plum sauce and yummy rice-with-veggies lunch thingie, I'm lookin' at you <3 ).
Everyone's tastes vary and so does their tolerance for deprivation. I'm a sybarite; deprivation utterly kills my motivation, so food has to taste good. I really do have to love the taste, or at the very least have a strong affection for it, in order to have success. I enjoyed my JC food and in fact would've gone right back there to drop the weight this time if I had the money to do it.
I think the important thing to remember is that if you're doing a prepared-meal program, it IS your money that you're spending; if you're finding something inedible, you can and should take your money elsewhere. A little Googling will reveal that all the options are nutritionally similar, so whether you go with JC or Bistro MD or NutriSystem or even your own selection of Lean Cuisine/Healthy Choice meals (and I've known people to have success with that, too).
All these programs have many success stories; choose based on price and tasty food and you'll have chosen the right program.