I prefe Smith+Crown. They're very thorough. Also Hacked is a very good site/blog, but you have to pay subscription to read more than 1 article.
EDIT: You might have to dig a bit for the comparative analysis, I do remember Coin Telegraph doing one way back (but that one is now outdated for sure).
Yeah smithcrown is one of the most popular sites for me that describes ICO statistics. Besides that I also like to see icotracker, here can see the collection of ICO that is running, which is over, or to be held