I get to the passenger plug facing the car from the bumper. I turn my hand with the palm facing the engine and slide it between the strut tower and the "floppy" rubber hose that goes to the valve cover. I push the hose up and get underneath it. With my hand at this rotation, I can get my thumb on the release button and grab the plug with the thumb and 2 fingers. While the passenger plug looked the hardest to access, it actually came off easier on my car. Attached is a picture of my hand buried in there and grabbing the plug. It's not a great pic however.
The driver's side looks easy... you can see the whole plug. However, mine was stuck pretty good. When you get your thumb on the release button, it is hard to get much grip on the rest of the plug. You might use an L-shaped piece of metal to help lift/pry up the plug while pulling with your right hand. Or possibly, you could take out part of the filter to make some room to get a better angle from the front side.
Good luck!