Most used oop pattern to use for php application development?

Good Evening All, I know this will probably start a flame war, but I want to get everyone's opinion on which oop pattern is either the accepted pattern or most used pattern for php application. I'm pretty partial to MVC but it has it's benefits and drawbacks. What does everyone else use? Hopefully my question will start some meaningful conversation. Unless of course I'm asking a redundant question and this has already been answered. Excuse my redundancy if it has. Have a great night everyone! Brent