I really like Cue Doctor Cue Wax. I've tried Butcher's. I bought a big old can and I still have enough to last me for 5 years. It reeks of turpentine, and it doesn't finish up to as friction free, or "slippery", of a feel as I like. I've also tried SC Johnson Paste Wax and Lundmark Clear Paste wax . I have not found anything better for cue shafts than plain old Cue Doctor Cue Wax.
On my personal shafts, I lay on the Cue Doctor wax, and then buff it out on the lathe. I finish it off with a leather burnisher, then I apply another layer, and repeat. They come out smooth as could be, and slicker than ice.