My opinion is that you have to take into account the purpose of the car in the first place,and like Rich etc has said,work out your compromises.If you have your car as your daily,and you are going over the usual crap roads,speed bumps and all that stuff then having a lowered car that's fully polybushed on large rims with low profile tyres,then you are going to compromise comfort AND longevity of a lot of your parts.Comes with the territory.Im lucky in that at the moment im running a cheapo Micra as a daily,therefore my Celica can have a fair bit of license to be modded.Springs,exhaust,all this stuff.Ive polybushed the uprated rear ARB as it is by design stiffer and is actually there for a purpose therefore it is supplied with polybushes anyway.Ive kept my wheels to a 16" and on a 45 profile.Trying to get the best package for me and what the car is used for;its not a track car so I haven't gone balls out polybushing the whole lot,thats not to say that I wont replace some of the bushes as I go but I still want to spice the car up but not make it so its a pain in the ass,even though its an odd week night blast and weekend car.I still want it to handle properly,go quickly and be a drivers car;its all about getting the balance right for your needs.