Despite the fact that I myself use Siemens SK65, and so that I am completely satisfied, I voted for the sonyers (very good memories, and their functionality / price is higher than that of other IMHO :)
By the way, before this SKi, there was a significantly worse opinion about the 65th seed series (it had S55 long ago and considered it the height of perfection - patches rule, but having tried SE these impressions were somehow lost against the general background :)