In terms of "cool" (as in "awesome"), this question is entirely opinion. I think most people would consider comets more awesome than asteroids because comets are sometimes visible from earth.
In terms of temperature, comets are made mostly of rock and ice. However, when their orbits are close to the sun, they can heat up and burn off some of the ice, forming the comet's tail. This means that a comet's temperature can vary depending on where it is in its orbit. On the other hand, asteroids in the asteroid belt have fairly regular orbits, which means that their temperature is fairly constant: cold.
Comets are Comets and Asteroids are Asteroids
Yes
Meteoroids are smaller than both comets and asteroids. They are small rocky or metallic objects that are typically smaller than asteroids and comets, which are large bodies that can range in size from several meters to hundreds of kilometers in diameter.
no
its the comets are smaller than planets, moons, and asteroids. In order of size, usually comets < asteroids < moons < planets
Asteroids and Comets
There are no known asteroids or comets that have impacted Mercury.
Asteroids are generally bigger than comets, with sizes ranging from a few meters to hundreds of kilometers in diameter. Comets are typically smaller and are made up of rock, dust, and ice. However, there can be exceptions, and sizes can vary among individual asteroids and comets.
Many cultures have superstitious beliefs about comets and asteroids. The Philippines do not seem to share superstitions of comets and asteroids.
Comets!
Comets
No. Comets orbit the sun.