Taylor's has the best reputation for customer service issues. Cimarron has taken a lot of flack in years past for not fixing rifles that made it past quality control with various problems. In my experience with Uberti, Cimarron, and Taylor imported revovlers and rifles, Cimarron had a slightly higher polish on small parts like screws, while Uberti USA firearms were a bit rougher. Overall quality and functionality was equal with all three companies.
When I was buying my last 'factory' gun I went with Taylor's because, at the time, Cimarron wouldn't sell to your local FFL holder, only 'distributors'. They wouldn't even quote a measley citizen a factory cost. I called Taylor's, they quoted me a price, I sent them a check and a copy of my dealer's FFL and I was all set.
To be fair, from what I've heard, Cimarron will now sell to individual FFL dealers, but the 'actual' price of the firearm isn't available to us proles.