What mobile phone should I get?

i want an android phone because my friends got the samsung galaxy s and it was really easy to use and had loads of apps,games and stuff but i cant afford one i dont text alot or call people often i use the internet all the time i found a few android phones which are �15 a month and the contract is 300 minutes and texts and unlimited internet which is perfect but i dont know out of the htc wildfire,samsung galaxy europa,sony ericsson x10 mini pro and the normal x10 mini none pro or the lg optimus which one is the best or the best for my situation?