Which t-mobile phone should i get?

I have been looking at a few phones to get but I cannot choose they are all nice in their own way so it's hard. Plus I have trouble making decisions. So here are the phones, T-mobile myTouch, LG Sentio, Motorola CLIQ XT, Motorola CHARM, or Samsung Vibrant. I really want to try an android. Right now i have a small flip phone from samsung that was called the stripe so any of them would really be better. I want to make sure itis easy to text with and the browser somewhat works.