First of all, SuperInspect has always been a nice addon, but its original author dropped it some time ago, and since then it was picked up by Smurfy, who created the version I wrote about for all of you. Since then, however, I discovered another addon which is based on SuperInspect but is much more up-to-date, called Examiner. I've been trying it out, and I've found it to be basically the same, except that it's easier to use and less buggy.
Additionally, some of you mentioned that you like PitBull's appearance but found it took a while to configure in the beginning, while others said that they prefer the functionality of X-Perl Unit Frames "out of the box" even though it doesn't look as good. As for myself, of course I think PitBull achieves the right mix of beauty and functionality, but it doesn't hurt to mix it up a bit. Try each one out and keep the addon which you like best.
Also, many of you asked about whether or not Discord Mods had been updated, and I have since found a version of these mods put up by "Faldora" on Curse, which supposedly is supposed to work with patch 2.1. I haven't had the opportunity (or the interest) to try it out myself, but from the comments on the Curse page it seems a bit buggy. Die-hard Discord fans are still posting a lot about their own updated versions of these mods on the discord forums and they claim to have no errors with them, so you may wish to try them out as well. Apart from these links, all I can say is that the discord forum fans claim that the original author, Lozareth, is still very busy on a replacement for all Discord Mods called DUB (or Discord UI Builder) which may actually be able to replace all of the mods you own, so if you love gigantic do-everything mods from Discord, don't give up hope!