Im generally using older componants, but I think the complete opposite. I don't run Shimano on any of my road bikes.
I don't think about it
I am simply observing what is patently obvious . I run both Campag and Shimao stuff from 8 speed to 10 speed and the difference in finishing is marked whether you like it or not.
Before 8 speed, Campag were miles ahead.
Since then, based on the stuff I have (mainly high end) cranks and shifters - Campag are better, Mechs are pretty even, calipers and hubs, Shimano have the edge. It would be a bugger trying to get that lot to work together though, and I stick with modern(ish) Campag as I much prefer Ergo to Sti.
The most modern component is a set of Record cranks, and I can see no issue with the finishing on those