The MSI MEG X870E ACE MAX wins in 4 out of 14 comparable specs, with 7 ties. Its biggest advantage is LAN (100% better).
ROG MAXIMUS Z890 HERO wins in 3 specs (VRM Phases: 29% better).
Recommendation
Choose MEG X870E ACE MAX if you want the best overall performance — especially lan.
Choose ROG MAXIMUS Z890 HERO if vrm phases matters more to you.
