Couple different things I CAREFULLY tried, and I reinforce CAREFULLY, obviously you've tried picking up on the door as you swing it open/close/open/close. Spray some WD 40 down the hings holes. If that doesn't work I got a long pry bar and CAREFULLY wedged it under the door right in the middle and slowly close the door as you pry up. Put a rag between the bar and door. One other thing I tried was a wide flat blade screwdriver, pry up on the door at the hinge pin. Once you get them off spray some white grease on the hingepin and down the hole, that'll help next time.
'06 LJ, Bestop Trektop NX, Smittybilt front/rear bumpers, 4" RC long arm lift, Currie HD steering, 35x12.50x18 Toyo Open Country MT's, 18x9 Fuel Hostage's, matte black special.