i just changed my fuel filter on the last service its a bitch...
put hose clamps on either side of it so u don't spray fuel everywhere (also makes the car start much sooner after you have changed the filter) then remove the engine side first (pull damn hard (don't yank it from the engine, hold the hose and the filter and pull them appart) then pull really really hard to get it off from the fuel tank side. thats the hardest....*