Which is better

[Powersmom]

Which carseat would you pick between the even flow triumph and safety first Complete air? Here are links http://www.albeebaby.com/safety-1st-...-montross.html. http://www.albeebaby.com/evenflo-tri...n.html#reviews
I am buying this for my niece she just hit forty pounds and has outgrown her current car seat. I wish I could buy her a Recaro Prosport. My niece just turned three July 30 she she is big for her age. I want something that will last a while and that is not crappy. My dd rides in a proride but I feel like my niece would outgrow that too fast and they are not cheap. She is not car seat less. I sent my alpha omega to her. It is my back up seat and I need it back. Event though I can't stand the thing.Any suggestions welcome. If you know of any deals going on right now that would be great too! You guys are the best!