The aspect of the gas giants that has the biggest effect on their rings and satellites is their gravity.
The planet that most extrasolar planets resembles Jupiter.
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.
Their distance from the sun
Gas giants have a higher mass.
This means that the gas giants have a more gravity to hold moons in orbit around them.
the way earth has a tilted axis