I know he was an unbalancable pile of crap but I really truly miss old Sion.
I have a really strong memory about having the best game of my life where I went 27/2 or something like that with old AP Sion with a full AP Mejais build literally two-shotting people with a Q-W combo and having a shield of over 1k.
Or that one time where I was getting outplayed by an enemy Irelia and going 0/2. The third time she jumped me I just popped ultimate and killed her anyway because of extreme attack speed and 100% life steal.
I think the new Sion is okay but unlike the other reworks it straight out killed what made old Sion Sion. I know his old concept is really hard but what if a crit, life steal and auto attack based Juggernaut was introduced as a new champion, or someone who was a living AP grenade waiting to pop while running straight at you? I know I'm just a random guy on the boards wearing Nostalgia glasses but I'd really truly love it if somehow a more balanced version of AP or AD pre-rework Sion would be introduced as a new champion.