Who is the nicest sonic character

I am not sure but I can give you most of the nicest Sonic character?
Sonic

Tails

Cream

Amy

Elise

Rouge

Silver

Blaze

Shadow

Mr.Big

Cheese the Chao

Chaos

Tikal

Emerl

Omega

Jet kind of

Wave kind of

Storm

Knuckles

Manic

Sonia

Vector

Espio

Charmy

Mighty

Ray

Chris

Shahra

Gamma

Sally

Rotor

Bunnie

I say Sonic because he keeps promise and he always help people out.