Finding the best iPhone Application

I wish there was a site that took all the iPhone apps that did the same thing, and had a shootout, so I could just go there and see which one was best and get it. Of course it would not be an easy job, as there are over 10,000 apps. They are being updated all the time. New ones come in, some disappear with no warning. Perhaps this site already exists and I just haven't found it yet.

For example I wanted an app to track domestic airplane flights. A search of the app store using "flight", and a browse of the "Travel" category turned up the following apps:

FREE
flight sites
airport status

PAID
flight track
flight status
flight update
fboweb.com flight tracker

POPULARITY
airport status
flight
flight sites
flight status
flight update
fboweb.com flight tracker
flight tracker
flights
in-flight
nextflight
air travel
airports

flight 1.0
flight traveler
travelocity travel tools

"Free" denotes apps that were in the top free apps column. "Paid" is a list of apps in the top paid apps column. They are in order of appearance, as is "Popularity" which is what I pulled out from the 30 pages of apps in the Travel category sorted by popularity. The other three were apps I didn't see in browsing by popularity, perhaps from the search by flight.

Now I have the nasty job of navigating to each one of these (or at least the top couple in each column) within iTunes and reading the description and pondering all the comments, trying to figure out which one fits my needs best, is a good deal, and will cause me the least heartburn. In interests of doing a good job, I probably will also self-insist :) on googling them to see if I can find any comparisons on some of the popular iphone app sites. Now you see my pain.. about 8 hours worth to pick one app I will probably use 5 times ever.

Two other apps I noticed in this search that bear mention are:
faawait - check for faa news stream on airports (not specific flights, but early warning on regional delays)
airport codes - common and standardized codes for each airport - handy for plugging into flight-tracking apps..