My favorite is the 120gr Nosler Solid Base. But since that one is no longer available, the 120gr Speer Hot Core does about as well.
I logged in to say exactly what you said. My Bob is now a Bob Ackley, and it loves Nosler 115 PTs. I still shoot the Speer 120's for the most part.
JB's line up is pretty hard to argue with...