Sorry, but it is all going to depend on your goals...
You want max size? I wouldn't cardio... You want a bigger recomp without adding much extra fat lbs? Do some mild cardio. I wouldn't go balls out on cardio, though.
I think people also forget the fact that any +- will happen in the kitchen. I usually don't do much cardio overall, I just go straight to the kitchen and adjust macros. I understand the heart benefits and whatnot, but I don't see it being THAT useful when doing a cut or a bulk, I just adjust macros and calories overall. Works well with me.
Anyways, if you are doing cardio, don't forget, some of the calories are going to be burnt off, so you'll have to eat more. Which brings us back to the main point, it's all about the eating. Of course, all of this with heart benefits aside.
P.S.: I would much rather do an all out Lean Gains approach with more extreme calories approach (-15/+35 Nonworkout/Workout days) than doing any cardio whatsoever.