Well after much research we've decided on the Recaro Como G2 seat for Luella. The biggest selling point for us was: Recaro (for you motorsports fans) builds race car seats as well as other motorsports equipment, so their seats are designed (and tested) to withstand MUCH greater gforce than the US requirements. They also hire independent companies to crash test their seats and they publish the results, which is highly uncommon. Britax was a close runner up, but after all comparisons we found that Recaro seats sit lower and have a more slender frame than Britax which were selling points for us.
So after much anticipation, here it is! (One of) Luella's early Christmas presents from Grandma Lorie and Grandpa Joe. She seems to be much happier in this seat than the infant seat we had previously. I'm guessing it's all the extra padding! Thank you Grandma and Grandpa!