Here we go...

The Legend of Zelda - 8/10. A good game and has the great feeling of being "the original" and a adventure, but it's terribly unclear and quite hard.

Adventure of Link - 2/10. By far the worst in the series. Just awful in every way. Doesn't feel like a Zelda game, plays completely weird, unclear and too hard.

A Link to the Past - 7.5/10. It's a solid game, but I just don't like the 2D Zelda's as much and plus this is by far the hardest in the series IMO. Now that I've played it a bit more, it's definitely a bit better then I thought, although it's still too hard.

Ocarina of Time - 9.5/10. Although the child part of the game is awful, the storyline cliched, the controls lousy and the game is aging very quickly, it's still very awesome at parts. The five adult temples are the pinnacle of dungeon design, and the music is fantastic and among the best in the series.

The Wind Waker - 9.9/10. An amazing experience. The game is wonderfully designed, with the best graphics (they still look awesome today), music (it's so awesome, I'm listening to it right now actually), story (very deep and interesting, from the very beginning to the very end) and replay value (it's just so much fun to replay and discover new stuff) in the series. The controls are smooth and easy to use, the game is very engrossing, and has an excellent sense of exploration.

The Minish Cap - 8.5/10. Although it's short and quite easy at times, it has some very creative items, dungeons, and puzzles, and the story works for the game. The music isn't too good, but it's a very solid game, and the best 2D installment IMO.

Twilight Princess - 9.9/10. Perhaps the pinacle of the series, it is an epic, adventure that is extremely fun to play and very well designed. It boasts the best controls, dungeons and gameplay in the series. The dungeons are masterfully designed and all very fun to play through, and it seems that it was all made to be as fun as possible. The music is not very good however, and the story, while good, cannot match TWW's. Still, it is the best Zelda game IMO.

Phantom Hourglass - 7.0. Phantom Hourglass feels like a BIG step backwards. The game is pretty much disappointing in every way. The Temple of the Ocean King kills the (average) game, and this game features the worst music and the worst story in the entire series. It just does nothing better than The Wind Waker, and feels like a mediocre adventure. It's the worst Zelda in decades.

*phew*