When you get into those top five, that's when you really have to dig into the search engine and look up on them. Plus, many popular apps are discussed on the forums, where you can find out issues related to the software in question. Usually links will be provided to them through your search engine.
But sometimes, you just have to go with your heart, because there can be a 60/40 split in favor of the app, or even 50/50. You really have to read through the reviews themselves, see how educated they appear, some you can dismiss just because of the wording of the review. A good reviewer will take some time, and the findings may be long, and that's what you want to see. Someone who takes the time, and has sense enough to even do a proper review.
I've been asked to do several reviews, and a couple was kicked back at me, because there weren't enough words in it, or I wasn't being specific enough. Epinions is a good example of that, and btw, they're a good consumer review site.
Epinions can be found at:
http://www99.epinions.com/
This site rates almost anything that you can buy, including software.
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