To be clear: OP is asking specifically about brands of slide CREAM, not slide lubes in general, right?
I think everyone I know who uses cream uses Superslick.
If you're happy with cream, stick with cream, and ignore those of us trying to convince you to switch to something else.
Yeah, I did ask for cream. The music stores near me only sell cream and oil, and I don't really have the means to buy anything online. I just didn't want to be rude.