I feel like Zelda 2 gets undue shit for being "Different". Even thought these days people claim they WANT different, and that "the Zelda formula is tired". But people retroactively look back on Zelda 2 as if it is the ugly stepchild of the series, even though if you were actually around back then, and had actually played it, most people were really excited for it. Yes, many wanted it to be the same as Zelda 1, but a lot of people actually liked the approach they took, and it was a game that was genuinely hard as nails, yet it was fair in the sense that if you learned it's fighting system, and earnestly put in the effort to get good at it, you COULD be really good at it. It wasn't unfairly cheap, ala Ninja Gaiden. Also, for it's time (1988), on NES, it had an incredible amount of content, and was a game of epic proportions.
I would say that Zelda 2 is actually one of my top favorite home console Zeldas, along with A Link to the Past, Twilight Princess, and the original. My least favorites are, hands down, Majora's Mask and Wind Waker. I just couldn't get into Wind Waker, the art style and sailing both really kind of turned me off, and with MM, it had a lot of good going for it, but it was unbearable, to me at least, to keep having to restart time and do the same shit over and over and over again.