Nokia.And I'd never buy a Sony Ericsson phone again,K750i is POS.I had one,and joystick broke,fixed it,broke again,bought an W 800,same thing. No SE phones for me ever.Except maybe the P series(P 990)
Now I have a Nokia 6630,and that phone owns. It has mp3 player,okay camera,Symbian OS 8.0.(Which owns Winblows Mobile),you can find some games that have really good graphics,can run N-gage games.....and is extremly fast compared to,say,Nokia 3650,which i had prior the SE K750i and
this 6630.
Also If I was any of you,I'd avoid getting any Motorola,Samsung and Siemens
Worst phones ever when it comes to quality. Especially Samsung D series(D500,D600),because their flat cable (a cable that connects one part of the phone with another) will break in just few monts of usage.And I say it will,unless you're really really lucky.
And with Motorola's....don't get me started.... worst phones ever.They look good though.