I play enhancement pvp.
Since blizzard "dropped" the group drop system for totems, I just can't find any purpose of totems' global cd. Many times when I pvp i find my self dropping more than 1 totem at the same time, and spending 2-3 global cds just to drop those totems can often define win or lose.
Searing (or Fire Elemental) + Bulwark is the most common combination. When I get zerged from melees, I need to drop Healing + Capacitor (and maybe Bulwark too if not on cd). Some other times while I chase a caster or something I need to drop Grounding for example to ground the other opponents' cc/spell casting on me, and maybe earthbind to slow them down. These lost gcds will cause a sight of an enha shaman running side by side his opponent, spending gcds until his opponent disappears.
I just can't understand why we need to spend half of our global cds on totem drops!