Cryket seems to be more up to date at the moment, I agree, but the site has just been updated. How often will they update the data? Every week? Month? Also it doesn't seem to offer any more information than the Market app that comes with Android, and without a QRCode does it really have any advantage over the Market app?
Androlib mines so much more additional information from the available data: User satisfaction, satisfaction level, distribution of comments by country/language, distribution of ratings with comments. See http://www.androlib.com/android.statistics.com-zirak-phoneinfo-qEEq.aspx for example.
You also get a QRCode, which is useful if you do actually want to download the app.