I think i like this girl what should i do?

I like this girl that is in my homeroom and another girl that isn't in my homeroom but i sit with her sometimes at lunch... the girl in my homeroom that i like sits right next to me and we talked about some stuff and it seems like that we are into the same stuff, same music and everything... but the girl that i like at lunch is astounding and has a awesome personality... i want to get to know them but i will eventually ask them out... so which girl should i choose? (i know, it doesn't mean that i won't be hanging out with the other girl that i had feeling's for)