I disagree on naruto to a point - it's opening was alright, tamed a bit from what I'd liked, and the comedic points were somewhat young in taste, but it was enjoyable enough when it got dark. Filler was crap, and bits of shippuden are crap. Sasugay is a pain in the ass, but hey, what's new. The show has it's ups and downs. It's no Bebop, true, but it's still got something going for it. --EDIT-- Ah, I see you made the show/manga distinction. Yes, fuck the tv show, it's all about the manga, and I do read that weekly.
Fairytail is young, but so far fuckin badass. Same thing as naruto with some jokes and recurring gags being kinda kiddish, but whatevs.