I've seen the Detective Pikachu designs earlier. Not all of them, mind you. So far, none of them were impressive except Pikachu himself, which didn't look too bad. They felt very uncanny valley to me.
Only reason I prefer Sonic's design a tad more is because he actually is a furry by design. So he fit in way better to me design-wise(albeit, the teeth are beyond ridiculous, but the rest didn't actually bother me). I'll see both movies soon, but it might be the first Pokemon movie I don't actually like. I'm not a fan of these designs at all and I don't really see them as a good transition. I do like the idea of completely realistic designs, but I also can't see how they'd work well enough with talking roles, so it has that particular issue to me. Otherwise, love 'em.