- Instant Flight Form
- Instant Cast Spells
- Mobility
- Versatility (all 4 roles in one)
- Shapeshifting (my personal favorite fantasy, I play shapeshifters in any game that lets me)
- Theme, I am a sucker for that deep nature green and brown theme
By Spec:
Guardian - I wish it was more exciting. I've played all the tanks and it is easily the dullest to me. There's no consideration in your mitigation, just spam ironfur if you can. Every once in a blue moon there will be a boss ability that is all physical damage and you can pool rage to get 3 or 4 stacks up all at once, but usually the best thing to do is just use it as soon as you can.
Balance - The WotLK/Cataclysm iterations were my favorite. It felt like you were balancing arcane and nature in your character and you had a lot of useful utility and support. Never felt overly weak either. Balance has been unfortunately left behind for what feels like almost a decade at this point and it is the only caster I struggle to play and enjoy.
Restoration - The jewel of the class to me. Feels very unique and proactive, while the other healers tend to focus on triage and reaction. Gives them quite a high skill cap as their reactive healing is rather poor compared to other classes and shines most when it can properly set up. This pushes you to learn dungeons and raids on a deeper level and prepare for damage rather than responding to it. As an aside, it is for this reason that I miss old discipline a lot, shielding felt very proactive like resto druids. Now they're mainly another reactive healer.
Feral - Also a great spec. I love the high skill cap and all the viable talents. From making the spec simple and easy for beginners to going deep and mastering tiger's fury, bloodtalons, beserk, savage roar, dots, and more. It's a blast to play and a great feeling as you inch closer to mastering it.
I do wish druids have shined more over the years. Restoration has always had a place in raids with their unique healing style, but the other 3 specs have been solidly middling most of the game. I've played a druid at max level in some capacity since Classic. Many times it was my main, and it's always been an alt I actively played. Usually outside healing it's not a class you're jumping up and down to take like rogues, mages, and hunters tend to be. Perhaps it is because of the strength of resto that the other specs struggle to find their niches. I've always wondered if the diversity has made some specs less desirable - not because they're actually bad but because their other roles are even better and it's hard to justify extras of a class.