I enjoy the interactions between the cast and the sense of humor, even better in the Anime in my opinion, breaking the fourth wall are some pf my favorite jokes.
Fights can be pretty cool, my favorites even though they get complaints a lot are the Natsu fights. The soundtrack is beautiful, that's one thing missing from other Anime I like.
Animation took a dive some what time skip part two days but still better than One Piece Animation Animation these days, it does have it's good moments.
Love the romance too, the Lucy x Natsu / Gray x Juvia ( When done right ) / Ever Green / Eilf Man are some of my favorite pairings, the Anime does the scenes better but fact that Hiro does that kind of stuff is great