Best full group composition

[fastboy21]

If your goal is max leveling speed then I'd go with:

War (untwinked at low levels this is hard---might want sk/pally if totally new)
Enchanter
Cleric
Monk
Rogue
Rogue (no repeats? either a pure dps class or a bard.)

If you want a solid utility group that can play anywhere, but not always be the fastest leveling:

War
Cleric
Shaman
Enchanter
Monk
Bard

This group can play pretty much anywhere in the game. It isn't as fast as stacking multiple max DPS classes, but that isn't always what folks want. If I wanted to crawl around Norrath for the first time (you said you never played EQ before) this group is a good one to do it.