Insightful as ever Stevo.
Obviously everyone has different goals, for me I use the gym to help with the sports I do so having good stamina is important to me which is why I tend to do 30-60 mins stints of cardio rather than HIT stuff. (i.e. playing football, or running, swimming, cycling etc)
I also do between 30-45 mins of weights 5 days a week. I think at the moment I'm getting a pretty good balance of cardio fitness and good muscle tone (though not a body builder by any means).