xperia s of course.

but dont leave the store until you test it thoroughly.. the display, the bottom cap, etc.
and dont forget to give it a case. there are lot of case that'll make the XS even cooler.

and the battery seems fine if u dont play games a lot. though mine is only last for about 10 hours (3G only, syncing, im, email), around 7-8 hours with some games, and around 4-6 hours with continuous games

but i dont mind. this beauty's only need around 1 hr and 30 minutes to fully charged!

The battery last for 1-2 days and the matte on the back didn't rub itself .. mine looks like new, and I use my phone alot sometimes I charge it 2-3 times a day ! 3g + games all the time!

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But mine has the yellow tint problem . So be carefull what you buy !