You all can look at various shootouts on The Half Dipper, A Tea Addict's Journal, and a few on ChaDao and puerh livejournal archives.
First of all, I don't really think this kind of review really help unless it's by someone who's really experienced, and likes what single mountain or blends or wet/dry have to offer. There are a lot of "this cheap tea does so much better than this expensive tea!" shootouts, thinking of the livejournal Dayi 7542 and 8582 vs Sanhetang 7542 and 8582 as a pretty good case study. For example, the Sanhetang 7542 probably should be compared the same year 7742 and the '03 HK Henry 7542, and not the normal 7542 post 2005.
Next, people often don't really weigh virtues properly. So many times, if a tea has a taste that they like, or the body, it tends to outweigh all of the deficits. Which can be dramatic when people like one style of puerh more than another.
Onto specific suggestions...
$$$ vs $ Money usually only indicates what tea is being speculated on, or how a tea is marketed. In using this standard, you need to be brand conscious. Of course a Dayi or Douji will lose to cheaper tea often. They are expensive for what they are. Then there are the issues with the credible brands in that they have a style that you may like or not like.
Mountain vs mountain First off, the days when you can easily find top tea from Nannuo, LBZ, GFZ, etc are long gone. One has to be really careful to pit mountain teas of the same quality against one another. The top DaXueShan, LaoBanzhang, Jingmai, and Guafengzhai are basically not beatable by teas of comparable quality from another region. People can like other regions more, but most people are impressed by good examples of the previously mentioned tea. Compare virtues of mountains to virtue of mountains. If you like big, booming huigans, and evaluating a Kuzhushan, then compare it with LBZ. Compare how mountain-woody the aroma is? Try a Pasha versus a BanpoLaoZhai. Long aftertastes? Compare your suspects with the great lincangs. So forth and on.
Vendors have reputations, and these are easily found. Hence, many comments about Houde and paper bag storage of samples. Nothing going here.
Storage vs storage is a lot of fun, but virtually all of such reviews happen during group sessions hosted by someone, like Listening To Leaves blogging of such a session at Floating Leaves Tea House. They're kinda hard to do by yourself unless you're pretty rich or/and connected.