Probably Nostalgic and Nightmare!

Nightmare pets look really cool! I also like Reborn and Storm pets--they look so majestic!

I've got a fairly serious Nostalgic pet addiction. I also like glade/harvest & hydrus

I like Graveyard, Bloodred, and Nightmare a lot it goes with my "Edgy (tm) Aesthetic" but my absolute favorite is the Nostalgic color!

I would say probably glade pets and angelic pets the most. I do also like a lot of the storm pets. The artists on this site are just so talented so it's hard to choose.

Harvest. So much potential.

Gosh, there are so many good ones to choose from. I think I'll have to pick storm though. Love the rain. <3

My favourite colour hands down is Reborn :) they just look so fierce and majestic. (I have a lot of Reborn pets in the family!)

My other favourite colours are Glade, Storm, Harvest and Steamwork.

In terms of potion bottle designs, I really like

It's really hard for me to pick a favourite because I honestly love them all, but I think Reborn, Darkmatter, Bloodred and Galactic are my top picks.

Storm? Vibrant? Steamworks? When I started it was Graveyard, but I think I've moved on since then.

Angelic pets are probably my top favorite, only because I have a thing for wings. Nightmare, bloodred and graveyard are all close seconds though!

That's hard. I like at least five pets in each color, so choosing a favorite is not easy. As it stands, I think I like the concepts of glade and galactic the pet--the former because of all the butterflies and nature art, the latter because it's so intricate in its design. The artists could have easily thrown together some vague galaxy background with maybe a couple generic stars on the actual pets, but no--they have a distinct appearance I always rather admired.

As for the actual potion...yeah glade still definitely wins!

Nightmare and Storm pets are my favourite. Many of the Nostalgic pets are really pretty, too.

Definitely Nightmare! great energy, and the shading is awesome.

Steamwork or Sweetheart. I want all of them to be honest.

Storm is my favorite, followed very closely by Glade and Steamwork. Though I may not often choose to use them, those colors have been in serious consideration for the majority of my pets. Most of my character concepts focus somewhat on the nature or lack thereof in their stories.

Nostalgic and Sweetheart get an honorable mention. While I love the artwork, it is rare that I actually consider using them. Even then it's limited to the same handful of species every time because the rest just don't ever seem to click with my vision at all.

Hydrus and Nightmare. But also Graveyard, Vibrant, and Sun lol

Steamworks, hands-down! Literally my favorite color on this site, and it came from one of the best site events ever. :)

Hydrus, Glacier, and Reborn are all amazing too! It's always very difficult choosing a pet in these colors, because I literally want all of them, haha.

Glade and Galactic get honorable mentions as well. They're very sweet, very lovely colors!

I really want a Storm or Harvest pet, they're so gorgeous! I have a Harvest potion already, I'm just waiting for the perfect species to be released in that color.

Spectrum/Blacklight :)