Where would you rather spend eternity? Heaven and hell are, according to Biblical banter, pretty similar in certain important aspects – it’s hot, for instance, very hot, in both places:
The temperature of Heaven can be rather accurately computed. Our authority is Isaiah 30:26, “Moreover, the light of the Moon shall be as the light of the Sun and the light of the Sun shall be sevenfold, as the light of seven days.” Thus Heaven receives from the Moon as much radiation as we do from the Sun, and in addition 49 (7×7) times as much as the Earth does from the Sun, or 50 times in all. The light we receive from the Moon is one 1/10,000 of the light we receive from the Sun, so we can ignore that…. The radiation falling on Heaven will heat it to the point where the heat lost by radiation is just equal to the heat received by radiation, i.e., Heaven loses 50 times as much heat as the Earth by radiation. The Stefan-Boltzmann law for radiation links the temperature of an object with the amount of radiation received. It would predict that the temperature of heaven would be 498°C hotter than the earth’s current temperature*. Thus heaven’s temperature would be about 525°C.
However, this temperature would only be the “steady-state” temperature. Presumably Heaven was created shortly after Earth so that it would be ready for its first inhabitants: Abel, Adam and Eve. Revelation 21:17 says that the walls of New Jerusalem are 144 cubits thick. This is about 66 meters. Such a thick wall would be an effective insulator. Heaven would thus have taken many months to reach its equilibrium temperature. But it presumably has already reached 525°C.
The exact temperature of Hell cannot be computed, although Revelation 21:8 states, “But the fearful, and unbelieving… shall have their part in the lake which burneth with fire and brimstone.” A lake of molten brimstone demands that its temperature must be at or below the boiling point, 444.6°C. We have, then, that Heaven, at 525°C is 80°C hotter than Hell at 445°C.
*Using the Stefan-Boltzmann law for radiation, (H/E)^4 = 50, where E is the absolute temperature of the earth (~300K), gives H as 798K (525C).