Personally I would go with the Britax B Safe. We actually just upgraded ours to that. I feel like over the last few years Britax has been the leading brand in safety. There are so many good reviews on it. I'm sure the Chicco is nice too, I've looked at them recently but decided on the Britax mostly because it was on sale for a really good price. Check your local Babies R Us, sometimes they have returns/exchanges that's at a good discount and nothing is wrong with them. Mine in particular didn't suit someone because of their stroller. Just something to consider! Hope you find one you really like!!
Re: What Car seat do you want?