i like a little of everything.
if i had classes to go to at the gym i would like that. i would especially like being able to go to a variety of classes.
i like that the dvds let me do them whenever i want (ie. first thing in the morning or right before bed or whenever)
i also occasionally like going to the gym and doing my own thing (ie. elliptical, walking on track)
i think it's key to change up your exercise routine every once in a while, so it doesn't become just that--routine.