Cream is kinda stupid but that makes her cute. She's nice and polite but also blunt in a way where she sometimes says rude things without realizing. This is also cute. She's small and adorable but also very strong and athletic, this juxtaposition is very cute. She's a kind hearted pacifist who hates violence but could unironically lowdiff 90% of the cast, this is also very cute. Cream is quick to be scared but will push on ahead anyways because she is, unironically, the bravest character in the franchise, this is very adorable.

In short, Cream is the cutest any Sonic character could actually be. She is max cuteness.