Which one should we buy and why?
We're leaning towards the Britax at the moment, but there could be something dreadful or fantastic about either one that we're missing.
Our other option was the Recaro Polaric, but I think we've discounted that on account of it being less versatile. Obviously we want to keep DD rearfacing for as long as possible, but if it becomes unworkable when she's 2+ (due to her discomfort/sudden hatred of RFing), at least we would have the option to forwardface in the same seat.
We only have one car and it's huge, so no worries about space or moving it between cars. DD is 9mo at the moment.