I like a bunch of different animals, so not sure what would be my favorite. I really like marine life, dogs, cats, pigs, birds (notably corvids and other birds that can mimic, as well as penguins, but still birds in general), rodents and some others. Beavers, bears, wolves and other wildlife are cool and cute too; of course, bears and such aren't safe to be around... My favorite marine animals are probably the manta ray, starfish, sponge, clownfish and shark. Maybe hermit crabs, too.
I like most animals in general, though. I can't really think of one I dislike, though I've learned stuff about dolphins that would make me wary around them; at least some dolphins are good, though...dolphins are probably a favorite too however, aside from those certain ones, as well as orcas and maybe pufferfish idk I like too many.
I also like bugs and spiders, I think they're cool, though for bugs it's mainly bees, ants, butterflies/moths, and a few others; mostly bees. Roaches and bed bugs suck (Wall-E's roach is cool though).
It's funny though because I don't actually like being around bugs and spiders; I'm scared of them. I'm not sure if I have any real phobia, as I can stay in the same room as them and try to ignore them (though flies and roaches and such really annoy me, and kinda scare me if they get on me or close), but y'know. I guess I just sometimes look at stuff about them or whatever online; some look kinda cute at least, like bumble bees and that white fluffy moth, and in games bugs and spiders are pretty cool. But in real life, I get anxious and freaked out somewhat...
Regarding the phobia part, though, there's a Minecraft mod called Alex's Mobs that adds a bunch of cool mobs to the game; there's an annoying one it adds, however, which spawns in Crimson Forests in the Nether: a big mosquito that latches onto you, sucks your blood, then shoots the blood back at you to hurt you even more than it already did. So far, this one not only annoyed me especially with how there can be more than one latching onto you, but actually freaked me out a little, I guess because of how it was modeled a bit realistically (still blocky and low-res textures though, but it has more blocks making up its body than the usual mob)...
