Depending on what I am shooting, I'll either focus with the centre point and recompose, or shift the focus point on the camera and take the shot as it is. My camera is not so good with the off centre focus points, which means that most of the time it a recompose effort.
If your camera has an "intelligent" focus system which shifts the focus point around for you automatically, then I think it is pot luck as to what it chooses to lock onto! Whenever I have to use my Mrs camera, I switch the AF mode to centre point as it's nice to have a bit of input as to what you are taking a shot of.