Scores: Britax One4Life ClickTight 7.5/10 · Graco SlimFit3 LX 6.7/10
If budget allows and three-across isn't a concern, the Britax One4Life ClickTight's installation system is worth the premium. The ClickTight mechanism is genuinely the easiest correct installation in the market. For three-across or budget-conscious buyers, the Graco SlimFit3 LX's 17" width is hard to beat.