I use probably 90% free weights or my own body weight. But a lot of it depends on your goals. If you are into other athletic activities that require functional strength (crossfit, sprinting or track & field events, or other sports), I feel that the free weights are usually your best choice. The better compound lifts use free weights and make you use supporting muscles for balance. But for just pure bodybuilding/physique, yeah, you could build up and add mass to many of your muscles on machines, but probably not all of your muscles. "Vsginnj" makes a good point about the safety that many machines provide as well.
pab2007 reacted to aroundhky in Free Weights vs. Weigh Machines