Pros of Machines
less intimidating emphasize certain muscles various intensities no spotter extra support for special needs fixed plane of motion
Cons of Machines
no total body one plane no challenge to core doesn't improve athletic not for all body types expensive
Pros of Free Weights
emphasize certain muscles target multiple muscles improve athletic challenge core improve dynamic joint stabilization and prop multiple planes
Cons of Free Weights
spotter difficult for beginners multiple dumbbells to change intensity more dangerous intimidating