I don't know if the writers are into symbolism, or are just picking names out of a hat - but for what it's worth...Aaron - "Shining light, high mountain, messenger"
"A teacher, lofty, mountain of strength"
Biblically, Aaron was Moses's brother, and the first high priest of the Israelites.
Read more about the biblical Aaron here:
http://answering-islam.org.uk/Index/A/aaron.html
Some other name meanings, taken from this web site -
http://www.andythenamebender.com/name-meanings/Hurley.htm
Jack - "Supplanter" (Supplant - to supersede, esp. by force. Cunning. To take the place of)
John - "The grace or mercy of the Lord"
Walt - "Strong fighter" "Rules, conquers"
Kate - "Pure"
Claire - "Clear. Bright"
Charlie - "Man"
Hugo - "Heart. Mind. Inspiration. Intelligent." "A thinker"
Hurley - "Tide. Sea tide"
Boone - "Good. A blessing"
Shannon - "Old" "Little wise one"
Sayid - "Master"
Michael - "Poor. Humble" "Who is like God" "Gift from God"
Sawyer - "Cuts timber" "Saws wood"
Vincent - "Conquering"
Ethan - "Strong. The gift of the island"
Danielle - "God has judged" "God is my judge" "God is judge"
Desmond - "Gracious Defender"Lucia (ana lucia) - "Graceful Light" (!)
Libby - "My God is Bountiful; God of Plenty"
Helen (Locke's girlfriend) - "Shining Light; The Bright One"