Sobble3 is a travesty, just pure disappointment. It might have a saving grace if it looks great when animated, but as of now I don't like it.
Grookey3 is surprisingly dope, though it's hair is kinda weird.
Scorbunny3 is easily my favorite, but I know not everyone is crazy about humanoid designs so YMMV. It's Lucario-esque to me, and I'm a sucker for stuff like that.
Overall, still better than Gen 2, 5 and 6 (though Greninja individually is better than all 3), but I expect a mixed reaction.
They all appear to be mono type, so that sucks, especially for Grookey3 since it's a hard life out there for pure grass types.
I looked them up and yeah that fire type does look cool. That's definitely a new Smash character in the making. I also like the grass type, but not as much as fire bunny. The water type looks pretty weird though, probably wouldn't go with that one. And why are they all mono types, that seems like a step back right?