Well like Pete, I use a Dslr. There is no preview with these cameras so the idea of framing a shot with the LCD is a moot point anyway. However, I used to shoot a DiMage 7i from Minolta, and when I used that camera I only framed using the LCD when it was not feasible to look through the VF. Like when I was holding the camera over my head, or trying to hold it still by pressing the lens aginst the side of a lagre fish/reptile tank.
OTOH I have used a Canon A60 quite a bit as well. I always use the LCD with that camera cuz the VF is abhorred. I have found that I got pretty good results that way, but an LCD will never compare with my Dslr's big bright VF!