My personal tribute for the finale (which I still haven't seen). Two very long nights.
Zaheer was my favorite villain in all of Korra. I might give Amon a slight nod in the costume and voice department but Zaheer had me glued to the screen. Not having finished season 4 I'll say at least temporarily that season 3 was my favorite; we'll see if I change my mind.
Oh also I actually did a video capture of this! I need to edit it all together and upload it but maybe someone will get some use out of that. At the very least it was fun way to record my process. Look for that soon.
Props to this thread
for having the answers I needed on the calligraphy. There's a really good shot of it in the episode but even a hi-res screengrab still made a few of the strokes run together; enough that there was a high chance I was going to miss a stroke or two and wind up with gibberish. That thread had a translation in simplified chinese which gave me the characters in text which I then converted into traditional Chinese. Good news was that they matched what I could make out from the episode.