Of what we have found most are the size of Jupiter or larger. But we know many more extrasolar planets exist that we simply cannot detect. If we were to draw hypotheses on what planets are most abundant they would either be similar to dwarf planets. Or, if the reader does not view dwarf planets as true planets then planets the size of ones in the terrestrial zone like: Mercury, Venus, or Earth. Are probably the most abundant.
Jupiter NeptuneThe planet that most extrasolar planets resembles Jupiter.Jupiter(apex)Most of the confirmed Exoplanets are larger gaseous planets with large masses. These are easier to detect and confirm due to their size. They most resemble Jupiter, although many are thought to be much larger than our largest planet.
About 100 extrasolar planets are thought to have been discovered. All are giants and probably most resemble Jupiter
Mars The inner planets such as Mars, Earth or Mercury. these are too small to identify in other systems and too close to the star.
We tend to see the large planets farthest away from their stars. So it is unlikely we will find any small planets close to their star similar to Mercury.
They least resemble rocky planets like Venus Earth and Mars, particularly they least resemble planets that we would consider as possible life sustaining planets.
Uranus
Jupiter NeptuneThe planet that most extrasolar planets resembles Jupiter.Jupiter(apex)Most of the confirmed Exoplanets are larger gaseous planets with large masses. These are easier to detect and confirm due to their size. They most resemble Jupiter, although many are thought to be much larger than our largest planet.
About 100 extrasolar planets are thought to have been discovered. All are giants and probably most resemble Jupiter
Jupiter NeptuneThe planet that most extrasolar planets resembles Jupiter.Jupiter(apex)Most of the confirmed Exoplanets are larger gaseous planets with large masses. These are easier to detect and confirm due to their size. They most resemble Jupiter, although many are thought to be much larger than our largest planet.
We tend to see the large planets farthest away from their stars. So it is unlikely we will find any small planets close to their star similar to Mercury.
Mars The inner planets such as Mars, Earth or Mercury. these are too small to identify in other systems and too close to the star.
We tend to see the large planets farthest away from their stars. So it is unlikely we will find any small planets close to their star similar to Mercury.
They least resemble rocky planets like Venus Earth and Mars, particularly they least resemble planets that we would consider as possible life sustaining planets.
neptune
So far. Jupiter and Saturn
Be cause we can see the big ones more easily, especially those close to their star (because they transit/orbit with a short time interval) most exoplanets are Jupiter like (or larger) and are hot. Hence they are called Hot Jupiters.
Most exoplanets so far discovered resemble Jupiter. However, Earth sized planets have also been discovered and more will be discovered.