Great post Greg.
I use MEK mostly, just because it cuts darn near everything, cleans paint guns, balances my checkbook, etc. However, I think the key here isn't the particular solvent, but rather the cleaning method.
Don gloves. Hold a sopping wet rag in one hand. Put a clean dry rag in the other. Now scrub with one hand and wipe off with the other before the solvent can evaporate.
If you let the solvent dry before you wipe clean, all you did was spread the contaminants around. With that in mind, acetone is a little fast, MEK is about right, and I reckon you could scrub a long time with mineral spirits or similar.
One more thing. Be careful where you get your rags. If you get a batch that had a previous life involving silicone or other bad things, the solvent can help contaminate the surface.