Yeah I like insanity as well. I just find it harder then running. I got into the best shape of my life and my jumping is the best it's ever been after insanity. I never really had much jumping ability but after insanity I was able to get the rim on a basketball court. Still can't dunk but I'll get there even though I'm a 40 year old 5'11" mexican.Insanity was actually dope to me.
I absolutely hate running... it's boring as fukk even though I still believe it is the quickest way to losing weight and getting in great shape. Used to run laps around my neighborhood as a kid at night dribbling a basketball and got in great shape within 2-3 months
I'm not much of a swimmer so I don't know much about that.
I loved insanity though. Used to do it with a group of friends after work or for PT