The eminent Muslim scholar and renowned Da`iyah, Sheikh `Abdel Khaliq Hasan Ash-Shareef, states: It should be clear that the disbelievers are rewarded for their good deeds in this worldly life, let alone no matter how big their good deeds are, they weigh nothing compared to only one of Allah’s blessings on them.
Yet, the disbelievers are not on the same level in Hell. We know from the Sirah (Biography) of the Prophet (peace and blessings be upon him) that the Prophet’s uncle Abu Talib will be the least punished in Hell because of his care of the Prophet (peace and blessings be upon him).
Finally, a Muslim is better advised to busy himself with clarifying the true message of Islam via his word and deeds to peoples instead of judging people, the thing which is referred only to Allah.
May Allah guide you and us all to the right path.