I personally didn't like this game. I was disgusted by the art style when I was 14, but now I don't even pay heed to it that much.
I have to agree with just about everything you posted. I didn't really do anything about the picture quest though.
I didn't like the story, it tried to be different, but instead came up as a plot hole ridden twee-Saturday morning affair. Somebody should really let Nintendo's writers know they just can't write great literature, Sega has written better stories.
What really killed this game for me though were two things: The uber-easiness (Mario Party 4 was higher in difficulty), and the sailing. The sailing was so boring, I could litteraly put down the controller and get a snack in the time it took to get from one island to the next, and to make it worse the warping powers of the Wind God didn't help at all. And the real killer: the Triforce Quest. As soon as I got here, I didn't care anymore, and knowing I had to sail around the world randomly, hope to find a triforce chart piece, translate it, THEN go find the triforce part and repeat the process EIGHT times, I didn't want to go through it anymore.
It was a so-so game, but far from the best. The worst Zelda game ever made though, and let's pray it forever remains the case, is Zelda: The Wand of Gamelon.
P.S.
Phantom Hourglass>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>Wind Waker