I voted for ZSJL for two primary reasons:
DC characters are my preference and I was very invested in the #ReleaseTheSnyderCut movement, so I'm naturally biased
However, this is not a good comparison at all. You're comparing a saga that was 20+ films and 10+ years in the making to...
There are so many variables we can throw on the table to show this isn't a great "vs" matchup.
I'm not saying ZSJL wasn't earned (that's an entirely different debate), but what I am saying is Infinity War and Endgame were earned and exist under very different circumstances than ZSJL.