[TL;DR]: Joel is better off-the-dribble and at hitting 3Ps; that’s literally it though. KAJ is better at EVERYTHING else.
(1): Of course it’s not fair to compare a card with a shoe to one without. That wasn’t my purpose though. You said Joel Embiid is the best Center in the game. I’m saying that once you remedy KAJ’s Open-shot 3P with a shoe, it becomes no contest a single to why he’s the best Center in the game. Without a shoe though, Hakeem is the best “base” Center in the game.
It’s also worth noting, that even though this is subjective, KAJ has a better/easier to time Shot (not that Joel’s is particularly difficult to time, per se). Joel’s shot is relatively slow (not KG slow, but somewhat slow nonetheless); allows for late contests from time to time.
(2): Once the card’s are that good, athleticism becomes immeasurably more valuable, solely because once a player gets hot (which is extremely easy/happens frequently for your Center position, due to blocks and rebounds as well as scoring- especially with the microwave, spark plug, and clutching performers persobality badges), all of their important stats essentially get capped-out at 99 (athletic stats aren’t affected).
KAJ is is better at literally EVERY single post & inside scoring attribute (+6 driving layup being a big one). He’s a MUCH better passer (+8 vision, + TWENTY-SIX pass accuracy, and + 14 IQ). He’s a marginally better rebounder (+3 boxout, +2 offensive, & + 1 defensive). He’s better at EVERY single defensive stat as well (big ones being +10 lateral quickness, +10 steal, +7 pass perception, & +7 on-ball D IQ). He’s marginally better at dunking (+20 flashy dunk tendency, + 7 contact dunk, + 2 driving dunk, but -5 standing dunk tendency). Joel has a good bit better defensive tendencies across the board, but he also has significantly more foul tendencies (which is ultra annoying).
As far as badging goes, the only noteworthy badge Joel has over KAJ is HoF Catch-&-Shoof; whereas KAJ has HoF Tireless Scorer, Acrobat, Difficult shots & Putback King.
2" height>>> 3" wingspan (for all we know, that difference in wingspan could all be attributed to having a bigger chest, which Joel definitely looks like he’s more “built”/solid than KAJ).
Joel is amazing, but it’s blasphemy to put him over KAJ and Hakeem.