To get the most comfortable ride, you have to consider bringing the entire suspension pieces back to like new condition. There really is no short cut to this. i would tackle the following renewing projects in this order: front end, front subframe, rear end, rear subframe
Front end:
thrust arms
control arms
sway bar end links (note: sway bar inner bushings grouped w/ fr. subframe)
struts
spring pads
dust boot
bump stops
strut bearings
tie rod ends
center link ends
wheel bearings
wheels
tires
front subframe
engine mounts
sway bar bushings
rear end:
upper control arms
upper track arms
lower arm ball joints
lower arm bushings
shocks
spring pads
dust boot
bump stops
shock mount bushings
sway bar end links
sway bar bushings
rear wheel bearings
wheels
tires
rr subframe
diff. carrier bushings
rr subframe mounts
note:
I didn't include springs on the list, b/c I just don't believe that springs wear out. They'll settle to a particular sag over the years, but that's about it. Once it's coiled out of the CNC machine or die, it's going to retain that particular spring rate for the life of the car.