Whilst hordes of people walk up the Llanberis Path on summer weekends, it is still worth doing if you're looking for the easiest way up Snowdon on foot. Going back down the same way is the simplest way home, but for variety an alternative descent via the Snowdon Ranger path is well worth using if you want to avoid the masses, and enjoy a longer and more remote-feeling walk.
Read more at http://www.ukhillwalking.com/logbook/r/?i=1235