Ben Witter has a good point, in the end its your choice, ive put together a screen and crusher plant in hwange ZW, and we had the help of an EC700 volvo, precision is as much in the hands of the operator as what the machine is capable of. we had two operators and it was chalk and cheese, i could ask the one guy for 5mm movement with the tip and he could do it, the other nearly dropped the whole structure he was so coarse.
whatever you decide, an experienced and well trained operator makes a lot of difference to the longevity of your machine in as much as dealer support affects your downtime.
i am a cat mech, thats what my boss believes in, here in zimbabwe dealer support is poor for volvo, whereas caterpillar is slightly better. but we do our own maintenance. and info from cat is alot more forthcoming. that said there are things on either machine that i like/dislike. my mate swears volvo. its alot like toyota versus landrover here. personal preference. at the end of the day it boils down to the man who uses it.