That is actually incorrect.
Firefox uses less memory than Chrome and actually has a faster start up time. Chrome treats each tab as a separate resource, which has benefits, but also causes it to be more of a resource hog.
The interface on Firefox and Chrome are very similar, so that is an interesting take that you have an issue with that and like Chrome.
Chrome most certainly has a lot of benefits as well and I like several of them. However certain addons I like Firebug, do not work the same in Chrome and are more of a headache for me personally.
I have tried to switch to Chrome several times over changes I dislike on Firefox, but I have never stayed with it as Chrome still has too many things I don't like. I do still however use it for cloud based apps and a few other things. I also use it to test web apps that I develop, so I am very used to how it works in comparison to other browsers.