In my experiance........

Front poly bushes are good , sharpen up the handling a lot but the TCA ones will wear out canny quickly 3-4000 miles of hard driving.Front roll bar poly bushes don't seem to wear.

Rear beam mounting bushes are better than Ford's and don't wear.

IMHO there isn't a poly bush on the market that is as good as a Ford one for the trailing arms though all bushes wear there.

Rich