Variance in Degree of Penalties

"Indeed the hypocrites are in the lowest depths of the Fire; you will find no helper for them."
[an Nisa, 4: 145]

"The Fire - they will be exposed to it morning and evening, and on the Day, that judgment will be established [it will be said], 'Cast the people of Pharaoh into the severest punishment.'"
[Ghafir, 40: 46]

"Those who disbelieved and hindered [mankind] from the path of Allah - We will increase them in punishment over [their] punishment, for they used to spread corruption."
[an Nahl, 16: 88]

Samurah bin Jundub (radiAllahu anhu) reported that Allah's Messenger (salAllahu alayhi wasalam) said: "There will be some to whose ankles the fire will reach, some to whose knees the fire will reach, some to whose waists the fire will reach, and some to whose collarbones the fire will reach."
[Muslim]

Nu'man bin Basheer (radiAllahu anhu) reported that the Messenger of Allah (salAllahu alayhi wasalam) said: "Verily, of the inmates of the Fire, the one with the easiest punishment will be one who will have a pair of sandals and s traps of fire. His brain will boil from them as a kettle boils. He does not see that anyone is suffering a punishment more severe than him, while he is the one with the easiest punishment."
[Sahih al-Bukhari and Muslim]

Ibn Abbas (radiAllahu anhu) reported that the Messenger of Allah (salAllahu alayhi wasalam) said: "Of the inmates of the Fire, the one with the easiest punishment will be Abu Talib; he will be wearing a pair of shoes which will cause his brain to boil."
[Sahih al-Bukhari]