The only one I have direct experience with is Punchy from PC, but I think it's gonna be Bob for me with Felyne as a close second. Neither of them quite make it to dreamie status, but they definitely have their appeal - Bob I think won me over because he's a meme, much like Roald, while Felyne is cute, and if I branch out and try out more games I think Monster Hunter is one of the ones I wanna check out.
Definitely Punchy! He's the ultimate lazy and my number one snack buddy. I used to worry about him in my gamecube town because he would forget his name pretty often. He also used to fall asleep outside his house on cold winter nights. We have the same favorite color and the same type of furniture back then. Moe would be second. I had him for a long time on my island and swore I would never give him up unless I met Punchy on a mystery island.