Graphics don't matter. Gameplay does.
Very true. Everyone does have their own opinions about graphics, some prefer the realistic style over cel-shading, but as long as the game is great and fun, graphics shouldn't be the thing to fully make you decide whether to buy a game or not.
If I did have to decide which game looks better, as much as I love TP, Skyward looks beautiful. The world is bright and vivid, and I think it works very well with the kind of game Zelda is.