From the few times I've played Hyrule Warriors with friends, it seems like fun, and it's certainly enjoyable. As a spin-off, I thought it did an effective job of tying the two franchises it was modeled after together. It was surely more of a Dynasty Warriors game, but Zelda's influence was strong, besides just the character's appearance.
Majora's Mask 3D was my first experience with this game. I kept hearing that it was difficult, and that new people shouldn't start on it, but I was determined to try. I loved the game. It was difficult, but with help from friends, and a little online help to finish the marriage side quest, I succeeded in my playthrough. It was amazingly fun!!!