which the best i choose???give me some idea.. =)

SONYERICSSON XPERIA X10




























HTC TOUCH DIAOMONS2



























so which i need to choose it???!!!
HTC TOUCH DIAMONDS2 RM 2599(at may middle 2009 out)
SONYERICSSON XPERIA X10 RM 2700-->RM 2780 (still not yet out...maybe july or august out)