I also wanna do beastkin (Described below in great detail)! If I ignore lifespan and power level the funnest choice might be custom beastkin. (BTW people, you could have been a beastkin deity if you were clever. The power of a god, but with the same fuzziness and fluffiness that is demanded. However, if everybody votes deity because of this it would throw off the point of the poll.)
Some things I would have to think about are,
(1) What is the base animal? Will I use only one animal? Why not use multiple animals? A selection could be really exotic; there is no need for some cliche catgirl selection. You could transition away from terrestrial and go marine to be a mystical jellyfish girl. Avian, reptilian, a dinosaur?
(2) How beastly do I want to go? Do I want to be a hulking, hairy werewolf or a lithe catgirl who only has ears and tail?
(3) Do I want animal sensory physical traits or personality traits? Like my sense of smell is enhanced or I get aroused by bloody meat if I used a carnivore animal as the base?
Hmmm. I think I would go pretty light on the furry level ... basically, I would just be a human with the animal tail and ears.
I chose a purebred Arctic Fox as my base animal. The ears have to be pointy! Stupid round human ears need to go. Filthy rounds. Since I chose a cold climate animal the ears will be smaller than regular foxes due to the fact that animals in cold climates need to prevent heat loss through the ears. This is fine by me since I think really large ears would be more of a pain to deal with that wouldn't be offset by the cuteness factor. I wouldn't mind having good hearing too!
The tail needs to be big and fluffy. Hey, if I'm gonna have a tail then I don't want some stupid little puffball nub. It's gonna be a prominent and proud feature of my existence! Something that people can only dream of cuddling, but will never have the opportunity to. Die in envy.
I chose Arctic Fox because of the fur. It's monochromatic and a pure white. I figure if I'm gonna be a beastkin then I want to have a strong theme. Mottled multicoloured fur would make me look trashy like a stray. Oddly coloured fur is one of the things that bothers me the most with beastkin. Their ear, tail, and fur colour should NEVER be different from their natural head hair and body hair colour! WTH. You bastards who do this ... I will find you.
I want pointy teeth. Increase the number of canines in my mouth by 4 and make them a bit more prominent without overdoing it. I don't want any modified diet or taste buds though. Just make me a normal omnivore and make things taste normal ... actually make it so that I am able to also eat like a carnivore without getting parasites from uncooked meat.
The eyes say a lot about a person and animal eyes could be even more intense! If I'm going for impact then I might as well choose heterochromatic eyes like an attention whore. Go for some kind of fusion of blue and grey so that I can stick with my theme of a cold arctic fox. Might as well give myself some enhanced vision too if possible. Internet says arctic foxes have poor eyesight (I don't know what 'poor' means without something to compare it to). Or I could be a cold fox with a stoic face and rock the intellectual glasses look, but I could be like one of those ... people ... who wear fake glasses for fashion even though they have perfectly fine vision.
I don't want a modified sense of smell. Who would want to smell all types of shit all the time?
I think more clawlike fingernails would be nice too. You know the black nail polish stiletto nail look? Something like that so that I could claw people without having my fingernails rip out. Not overdone though. I don't want fucking lobster claws instead of hands. Make it pretty low-key so my hands still look pretty human.
It's like a cliche that beastkin have enhanced physical abilities at the expense of magical abilities. I would like to be a more rare variant with much better magic abilities and perhaps some lingering strength from my beastkin heritage. It's magic ... who would give that shit up for physical abilities? Foxes are also supposed to be clever, so I hope this helps me, and I should get some kind of natural cold resistance too.
Overall, I want to go for a high class arrogant look that makes people think I'm outwardly cold like my pure white fur (or perhaps an arrogant cat). I'll rip their throat out if they dare get too close to me. That kind of vibe on the outside, but on the inside I want somebody to pat my head and would let children play with my fluffy tail. It might be too intimate to let an adult touch it though.
This is how it's done people.