Answer:
Templeton is not good.
Step-by-step explanation:
Templeton is a selfish and self-centered rodent. He does not want to save Wilbur's Life and it takes a LOT of coaxing and bribery for him to help save Charlotte's egg sac.
Here is the Author's description of their least favorite rodent:
"The rat had no morals, no conscience, no scruples, no consideration, no decency, no milk of rodent kindness, no compunctions, no higher feeling, no friendliness, no anything."