The Legend of Zelda: Wind Waker, I think there are technically better games in the franchise but Wind Waker appeals to my aesthetic sense so much. I love the cel-shaded art style, the story, and one of my favorite portrayals of Ganondorf in the franchise. Now, I will admit the sailing isn't the most engaging thing ever but I'd love for a return to this game and style in the franchise.
Super Mario Galaxy: Again, there might be a better game in the franchise but Super Mario Galaxy was the first game that really invested me so much to play it. It looks gorgeous for the time and system it was released on, the score is amazing, and the sense of scale even after Oddysey can't be compared. It was the first big game I played and my favorite "big" game.