To me the new energy bar on the confo shows is just not it, it looks unnecessary long and thin and when I first saw the energy icon (which is not needed anyways, as it literally says 'energy' in the bar itself) I thought it was a broken image icon xD Overall, it kind of gives me a 'html without css' vibe. I know it's also because I'm used to the old energy bar, but to me that one looked a lot better so I would say, keep the old one.
But this is just personal preference, do voice your own opinion in the comments, maybe most players strongly disagree with me or want an even different look than the updated and the old one?