My thoughts on this, I normally go back for Ori lower arm.. no1 reason being, overal quality and durability.. Your ball joint will be on its way out soon too due to age. so do it once and do it right.. everytime you remove the lower arm and reinstall you will need to realign your wheels.

as for aftermarket arms some do work very well.. but these days quality in this area seems to be a big issue.

for replacement of bushes these generally dont last for rubber ones.. There are polyurathane bushes out there in the market, expect it to be at a durometer of 80-85 and above. My weekend car is on Prothane bushes. So ride quality is not too bad, but where it really differs is the NVH. As much as i love the more direct feel of Poly bushes, on my daily car i still use factory original stuff for the best balance between comfort and performance. Hope this helps you decide.