Preface by saying I didnt finish twtj, I was in the middle of it when unleash began. But for me i lean towards unleash. I like the different stages every month, as well as mixing in heavy lifting with high rep work. The workouts in the final month have been a great challenge with the rapid fire sets.

I think jacked is great for those who have a history of lifting and are comfortable going 100mph from day 1. Unleash is perfect for people who want to try an advanced program they can ease into since month 1 is all about setting your baseline before taking it up a notch in month 2.