Which 5.1 setup is better? Logitech Z506 or Genius SW-5.1 3005?

Get the most out of your music, games and movies with Z506 5.1 multimedia speakers from Logitech!TheZ-506 speakers are compatible with game consoles. The latest six piece speaker system from Genius, SW-5.1 3005, lets you experience incredible surround effects with movies and games. The 75 watt output has a powerful 25 watt bass,