Ken Rockwell might be the most interesting reviewer I've come across in years. What he favours is well known (e.g. metal over plastic) but his opinions always feel honest and he's pretty pragmatic on what he recommends. Unlike most reviewers (across all review subjects) he provides a lot of technical data to the point where it feels like it's "ok" to form a different opinion from him, and that you don't have to write off his whole review. He doesn't tend to get stuck on one fault with a lens like many people do.

And his website is easy to read and navigate, which is rare for review sites.