As far as I know I have seen the latest research on high intensity training and yes the latest studies did show that it didn't burn as many calories as previously thought but it's still better than low intensity for the same amount of time. Like I always tell my clients too is that your main concern should also be the change in your body composition and not so much the weight scale. Since doing alot of cardio with no strength training will make you lose fat but it will also cause you to lose muscle.
I was going to post some links on some studies but it won't let me on this forum.
The research does show as far as I know that combination strength training especially moderately heavy like close to 8 rep max with HIIT does seem to be your best bang for your buck.
If you have other studies that suggest otherwise, I would like to see it.
HIIT is not superior to SS cardio.
They are unique tools that should be applied appropriately. Presenting it as an either/or proposition is silly, IMO, and we don't need studies to say otherwise.
It's not about superiority. It's about appropriateness of application given particular circumstance.