Insanity vs P90x ADVERTISEMENT 805 viewsSeptember 3, 2012 0 Jason0 September 3, 2012 0 Comments Insanity workout vs P90X. Which one is better? 64 Answers ActiveVotedNewestOldest 0 Linda0 Posted 0 Comments I love Insanity for myself, and wouldn’t use it with any of my clients. I do use pieces of P90X with some clients. That’s what makes ‘personal training’ personal. You are viewing 1 out of 64 answers, click here to view all answers. Register or Login