Back in the day of 2e, we had some unique party dynamics. Examples.
Fighter, Fighter/Mage, Mage, Mage, Mage, Thief (No cleric)
Ranger, Monk, Necromancer, Fighter/mage/thief, Fighter (no cleric)
Crusader, Bard, Fighter, Psionicist (No Mage, No Thief)
Cleric, Ranger, Fighter, Fighter/Thief, Fighter (No Mage)
Since 3e though, we've been adopting the "four roles" method. Our current game: dwarf fighter, elf wizard, human cleric, halfling rogue, half-elven bard. We're already calling ourselves the iconics! (and as extra fun: we're all the correct genders; we could USE the dang DDM minis for our characters!)