Which is the best mobile phone in Sony Ericsson currently?

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I already have SonyEricsson W810i model for the past two years and now i would like to chage my phone to newer one than currently i'm using. Can anyone share your experience in the best phone in sony ericsson now? Please comment about sony ericsson alone. I'm not interested in nokia or motorola. Becuase i used more than 30 mobile phones in nokia. Now i want to change in sony itself.