Hello, I am interested in buying one of this phones, which is the best, tell me, the Xperia x10 has no FM Radio, the others are the same but the vivaz it has 8 mp camera,also it has TV out function. The money doesn't matter at all. Just give me some kind of sign
None, Sony Ericsson Xperia Neo is coming out in March.
But if you want any of them, get the Xperia X10. The Android OS is so much superior compared to Symbian.
edit:
If money doesn't matter at all definitely wait for Xperia Neo or even Xperia Play (Playstation phone).
Both of them are coming out in March and run on the latest Android OS (2.3 gingerbread).