Cytomax is pretty good from what I recall. I haven't drank it warm though...
I used to drink Gatorade, but the syrup buildup no matter how diluted it was kept getting to me. I will drink a cold one after a ride though. Nuun and everything else just doesn't taste good.
My solution to electrolytes? A Payday bar. It's got a nice blend of everything. Salt, sugars, proteins, hard food. Usually $1-1.50 and in every gas station too. One + 2-3 gels are enough to get me through a 60-80 mile ride.