I have a suggestion for a structured approach and to reduce the subjectivity:
The performance of NIH can be split into the following parameters:
*Intro - how many beats after Brian starts before Adam jumps in, quality of the delay effect. Did the videographer catch the Here/There on the two screens?
*Curtain lift - did it work. As Q3 suggested, we can drop those videos where it did not work
*Is there a Q - Vegas did not have the Q screen, so even if the vocals were great, it might need to be dropped as it does not represent the full impact of the stage
*Did the mike work? Chicago does not qualify...
*First verse - any lyric fails? Who was in the dungeon? Peaches or somebody else? Sometimes "came" becomes "comes"...
*Guitar to second verse
*Second verse - any lyric fails?
*Guitar to bridge - does it contain "Little Queenie"?
*Bridge - any lyric fails? A few times Adam got the wrong lines, singing about matches lighting up the sky.
*Pause
*Did the videographer even record the rest? If not, the particular YT cannot be used, find another one
*Now I'm Here - did he mention the city? Not sure if the best version should contain it or not. It probably should.
*Quality of the delayed Around-Around, length of the sustained note...
*Finale
*Audience Reaction throughout and in the end
Now make an Excel or Google spreadsheet, write down all cities in the columns and the above parameters as the rows and start adding + and - signs for each parameter based on any video of each city. Any entry with - signs can be skipped until you find the concert with only + signs. If you don't, then find the one with the least - signs...
Then find the best one or two recordings of the top 3 cities and let's vote...
Just an idea !