Suspension advice needed.

Can i get in on this..i have replaced these bushings[lca]on mounting they both ride pretty much the same spot and they are both captivated.. and the only real difference i can come up with is that the pin and cup are pretty well bonded to the rubber bushing and the poly slides on both..both use the cup and both use the pin ..so whats up with people not liking poly...i have not driven with polly so im really inexperienced with it so all the experience and comments here would help me learn about this issue...tx..j