Curuios to see how much each game affected anothers score.

There was one preview I breifly scanned and recalled them talking about the arrow firing in both games. They talked about the physics in Zelda's arrow shooting in how you had to adjust for distance and so on. YOu know aiming ABOVE a creatures head instead of sniping in teh crosshairs. And then they mentioned how it made Horizons SNIPING arrows feel elementary or something to that extent.

Seeing how both games released within days of each other, I could see the reviewers having to review both at same time and thus may have lowered or highered one games score based on what one did better or worse than anothers.

Just wanna throw here that a 10 doesn't strictly has to mean "perfect". Gamespot's appraisal of 10, for example, is "essential", which allows them to give a comfortable 10 even if they can spot one or two flaws.

There is no perfect game. 

Did they get reviewed by the same person? Doesn't only one person review the game then give it a score?

I doubt it. They a re big enough sites that they wouldn't put the same person on two such huge games so close to one another. You would want them to be able to put more time into each game and not be cramed.

But they are also big sites. Their reviews shoudl have to go through someone before they can post them. So it's not like one can just decide to be a dick and troll a fandom. They shoudl have to explain and get permision to give out a 6/10 for a game others are giving 9/10's.

Its still the highest rated game  all time there. Calm down. Even if it drops. Makes a big deal for you i know. Too much nintendo positive news for today

There is no perfect game. 

The pro-Nintendo bias by critics is a bit annoying. Other than that, I'm not sure there's a lot of positive Nintendo news. The day 1 patch did not fix the desyncing issues, for example.

Reports are actually saying the day 1 patch did indeed fix the desyncing issues.