Considering that they claim their "techs" couldn't even get some of the seats installed on the testing bench correctly, I just don't consider any of their information reliable at all -- every carseat can indeed fit the testing bench & not being able to do suggests total ineptitude....
Every correctly used carseat will protect your child, but features to consider inlude energy aborsing EPS/EPP foam & those which you can use the easiest
In the
Safety Seat Basics page of my website you'll find a link to NHTSA's
reliable infant seat crash test comparisons: there are a few that do look like they perform better than the rest & they're generally the ones that cost more, from companies that are known for their more own comprehensive testing policies (in addition to meeting the federal standards).