I don't have an explanation, but I've always thought of dafekick by war_hero as an aesthetically "perfect" replay.

The most beautiful kick ever made imo

I do love complex shit but its the simple replays that are often truly memorable and most fanboy-inducing for me, so it's my favorite.

I would say the "best replay of all time" is limpstyleshiz by CheZDa because its still fucking godlike and he made it in like 2007 like no one else was nearly as good as him at the time in my eyes (dafe is cool but not like this)