I change my oil every 5,000 miles. I use 5W-20 Mobil One, with a Mobil One - 102 filter.
I know that I am fussy, but I like doing the oil change myself. This way I can control the drain time. I am under no pressure to make more money by taking care of the next car. I can let my car drain for an hour, or more. That way I am getting out the very last drop of the old oil. I also get some time to poke around under the hood, look at the hoses, examine the belt and check all of the other fluid levels.