5 elementals is the devistating combo most, if not all shaman teams use.
Depending on endgame however, 40/0/21 which is the nature swift build is requires for endgame PVP & Arenas.
Where if your levelling and your focusing on PVE content 41/0/20 is the most desired PVE build.
If your wanting a resto shaman in the mix you will be looking at something like 0/5/56 or something similar to that.