Back when I played, I found the easiest plane for me to land, was the one I flew the most. But, I found the P38 pretty easy to fly.
Go into the Training Arena and select a plane. Take off from a field, circle back around with some decent altitude, and line up with the runway. Keep decreasing your throttle steadily, and make sure you dont slam your nose into the runway. Try to keep a nice angle upwards, kinda like you're stalling. You should be going pretty slow on decent, and on the verge of stalling.
Mind you, I did all of this off of pure memory. I haven't played in, well, I don't remember how long. Maybe a year or two.