2. Moon druids scale in a very wonky fashion. Too strong at Lvl 2. Too weak at lvl 8/9. After Lvl 10, why change to any beast? (there are reasons, this is a superlative sentiment.)
Moon druids at level 8 are strong because they can Polymorph into a T-Rex; they are strong at level 9 because they can now summon up a double-helping of wolves/whatever via Conjure Animals V, which is the best-scaling (and fastest) summoning spell in the whole game, or conjure up an Earth or Fire Elemental with Conjure Elemental. Plus, all the goodness from previous levels, such as Spike Growth (virtual Fireball), conjured Magma Mephits, Confusion crowd control, Speak With Plants/Plant Growth terrain manipulation, Wall of Fire, Call Lightning, Entangle, ultra-sneaky Pass Without Trace (+10 to Stealth = surprise = virtual Action Surge for everyone in the party), etc.
Moon Druids are never weak at any point. (And no, Level 1 doesn't count because they're not Moon Druids until level 2.

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Obviously I'm not trying to discount your experience, because if this is what you've seen, it's what you've seen. But it struck me as a bit odd, because my experiences are different. IME, since land druids can't change into as powerful beasts, I've seen land druids act like nature priests who use wildshape to change in to utility animals (cats to sneak, dog to small, etc). Moon druids on the other hand, change into beasts for battle, and use spells to augment/heal that area. So for me, they play totally differently.
The following observation is based on mock runs, not actual play, but I think it is still valid:
The biggest difference between Moon and Land Druid wildshape, pre-level 10, is the action economy. Moon Druids can cast a spell (e.g. Spike Growth) and THEN ALSO wildshape (e.g. into a Giant Constrictor Snake). Land Druids can cast a spell OR wildshape into a slightly weaker animal. Overall however, the difference between a CR 1 animal (Giant Toad) and a CR 2 or CR 3 animal (Rhinoceros, Giant Scorpion) is not that big. A 8th level Land Druid who wildshapes into an AC 11, 39 HP Giant Toad to restrain the hobgoblin warlord isn't quite as tough as an 8th level Moon Druid who wildshapes into an AC 12, 60 HP Giant Constrictor Snake... but in both cases, the hobgoblin warlord is going to get beat up pretty thoroughly at advantage by everyone in the party, while being at disadvantage on his own attacks.
Also, the nice thing about wildshape being a short rest ability is that anyone, including a Moon Druid, can afford to wildshape into utility animals. That I
have seen in actual play.
Anyway, IMO, if you're a land druid who never wildshapes for combat purposes, you're leaving utility and free HP on the table. 36 free HP per short of Giant Frog (or Black Bear, or whatever) is still 36 free HP per short rest.