I feel Anandtech has what I consider the overall most trustworthy reviews, and in many ways the most insightful as well. Quality is high, quantity not so much. I don't know any site that has been so consistently strong for so long.
For cases I like the GamersNexus youtube channel, however the videos are interminably long. I've found that starting 5 minutes in is a safe way to skip some of the repetitive ramble, and any gripes I skipped over will get repeated at least four more times.
Digital Foundry
Gamers Nexus
Linus on some things.
Buildzoid
Look for sites that include average, 1%, .01% and frame times in their benchmarks. Beware of sponsored content. I stopped reading Toms Hardware due to this.