True Mass is put together well, I like that it's slightly less high in carbs than most blends, and it tastes great. But it is really expensive. You go through the tub way to fast to be worth it.
I have tried Super Pump. The best preworkout drink I've had is High Voltage by MVP. I recently did a personal showdown between HV, NOxplode, WTF Pumped and N.O.K.O. (a cheap brand). HV hands down, and it has the right amounts of creatine and arganine that you want, plus none of the controversial PreWO ingredients.
DB2000