[The Professor]

Originally Posted by BigFrank

Without getting into a crazy debate.

Machines-
little or no stabilizing muscles used.
safe
easy
more controlled motion
specifically isolate
easy ( yes said it twice )
Free Weights -
Stabilizing muscles used to full extent.
not as safe
not easy
greater strength gains
more versatile
require more balance and coordination

It honestly depends on what YOU are trying to do with yourself. Personally avoiding compound movements and avoiding the use of free weights entirely is a bad idea. For the normal person, a good blend of both would be ideal. Free weight early in the workout, machines later.

What Frank said. Hence the shame.