I know Leeroy Jeepkins disagrees with me, but the floor jack with just a little up pressure while swinging the door back and forth a bit works every time - without fail. Just make sure to put a block of wood or something between the jack and the door so it doesn't mess it up. Also, just keep the jack as close to the hinges as you can.
I have done this SEVERAL times on SEVERAL Jeeps. Always works.
If you'd rather bust a nut trying to lift em off, go for it. Personally, I would rather "work smarter, not harder".