I disagree.
Metacritic: Zelda U > Horizon Zero Dawn
The Zelda franchise is a critical darling - even "meh"-Zeldas score 90+. Horizon is gonna end up in the mid 80s at best.
Sales: Zelda U > Horizon Zero Dawn
That's a tougher category. Zelda will sell pretty well - expecting 3-4m lt. Horizon sales are hard to predict - it might get big or it might just be another one of those Sony IPs that never quite make it and end up with 1-2m lt sales. Since it's pretty rare for new Sony IPs to actually click, I'll stick with Zelda outselling Horizon.
Graphics: Horizon Zero Dawn > Zelda U
Agreed. Artstyle can't be judged objectively and from a technical standpoint Horizon has more hardware power as well as a developer that is known for good graphics behind it.