I think Stitches and Tammy are cute but...I <3 Barold! I thought he was cute when I first saw him and he's grown on me so much that he's never leaving my town...EVER
The only one I really like is Stitches. Chester is alright too, but I probably wouldn't keep him in my town. Most others either look generic and boring to me or would scare the living daylights out of me if their plot appeared in my town.
I have Chester and Pekoe. They live right next to each other and are adorable. I once saw them get in a fight and it was the cutest thing because they're just these two tiny bear cubs fuming at each other.