Everyone has their own preferences, tastes, and inclinations. If you define promising as working out-of-the-box with elegance, then Linux Mint is the standard. For a Fedora remix, that would be Fusion Linux (FL14 review here).
For a distro that is based on Enlightenment, two thumbs up for Bodhi Linux. Promising because it’s a fledgling project. Give or take a couple more years and we’ll let you have a say on it.
But then, that’s just a subjective me. No need to argue with yours or anyone for that matter.