1. North America Animal pack: sure the arctic fox was there just to fill in the obvious and rather ridiculous omission from the Arctic pack but the whole roster of the NA animal pack is just perfect. It has taxonomic variety, it includes highly requested (and needed) animals that are also very popular and iconic and it also represented the NA fauna very well. Very balanced and varied. Maybe i would've went with a bird of some kind (be it roadrunner, burrowing owl, wild turkey or roseatte spoonbill, even a pelican) but i can't honestly think what animal i would have trade it for and that speaks a lot about the great quality of the pack. Of course some other icons from NA biodiversity are still missing (such as the bald eagle and the ABB) but the ones they chose were great.
2. Wetlands Animal Pack: for me this roster could've been almost perfect if they just changed one of the ungulates (mainly the lechwe, which i never use tbh) for a waterfowl like a pelican or duck. Also the inclusion of yet another caiman (even though i love the spectacled caiman over cuvier's one) was kind of redundant. A large freshwater turtle (like Arrau's or alligator snapping or some asian sofshell) would been something different and very cool as a replacement reptile, or even, if they wanted another croc so much then the Nile crocodile would have been my prefered choice. BUT that said this pack gave us zoo icons such as the capybara and the ASCO, both of them extremly needed, and the platypus, such a famous weirdo and a staple of Australia that even if rare in captivity could not end up missing from the overall game roster. And let's not forget that this pack gifted us with the first new bird in a loooong time. For me this is a must have pack.
3. SEA animal pack: yes i know, it has the tapir, but i'm not considering (just) the model quality in rating them. I think this pack is also very varied and well balanced and offered a lot of animals that represent that region very well. The clouded leopard (despite now being very buggy) is one fo the best looking cats in the game. All the animals choices were very unique. Of course rather than the proboscis monkey the gibbon should've been included in this one (or even the siamang) but now that we got them later on i'm happy we got the nosey primate instead of them. And despite being one of the oldests packs i do think the animal design for some of their animals hold up very well (like the babirusa, clouded leopard, monkey and sun bear). Of course it has majors cons, already mentioned earlier on the paragraph. And the dhole was kind of a dull inclusion for me (no pun intended), but i'm still content that we have them. Maybe instead of it i would've chosen once again a ground dwelling or wading bird or even the AWM that we later got with the tropical pack.
4. Grasslands Animal Pack: this is pack is weird for me because despite including several animals that were in my personal wishlist (maned wolf, emu, armadillo, caracal, blue wilderbeast), i also felt a little bit underwhelmed by the roster. I think it was the chance to get the secretary bird and the blackbuck, yet we got the striped hyena which i didn't really needed nor i would've included in a GRASSLANDS pack, the blue wildebeest which should've been in the base game from the start and not taking a slot in a DLC (even though is an amazing model and is a staple of savannahs so it fits the pack's theme perfectly) and the caracal which egain i feel like it could've work better in arid type of biome pack. Also nor the caracal or hyena really impress me with their models, even though i apreciate the detailed animatios for the caracal's ears and the kittens are adorable. The maned wolf model looks fine but the texture and detail of the fur is not really their best work and they missed the chance to include their unique jumping animations. I feel similar about the emu's feathers. That said both of this animals were really needed to fill in some gaps, specially the emu. The butterflies are a fun and unique feature of this pack, and the armadillo is just fantastic, one of the best animals in the game imo.
5. Arid animal pack: well i've already expresed my opinion on this pack a lot lately lol I'll just say once again that my main dissapointment with the pack is the lack of region diversity. I really hope is not the last "desert" themed pack we get because the two we have are all focused on Africa. But i must admit than other than the sand cat the animals in this pack are fantastic and top quality and it includes the porcupine another contender for the best animal in the game.