I like to mix it up. I prefer hosing down whichever side is presented to me over in the mouth, but in the mouth is nice too. I like to stay inside her until just the last second...and I've ended up with some serious glute cramps trying to get from pussy to mouth and hold it in.
But no matter what, sinking it hilt deep into a hot wet pussy until you hit the back of it, gripping either hips or shoulders, and just letting loose is SO satisfying, on SO many levels that nothing else could possibly compare. I'm talking orgasms that make you forget a million years of evolution, curl your lips back from your teeth and growl.