What is the best keyboard on a smart Phone?

Keyboards on smart phones help distinguish good devices from the not so good ones. If I were a big device maker, I'd spend a ton in re$earch to mimic the feel a great computer keyboard. Of the smart phones available to me, I have tested the following:

HTC G1
HTC MyTouch
HTC Droid Eris
HTC Hero
Motorola Blur
Motorola Droid
Samsung Behold

I tend to like virtual keyboards better than physical ones. So you know my bias. It is a matter of taste, IMO.

And of all the above phones, the HTC G1 seems to have the best physical keyboard. And the Droid Eris the best virutual keyboard, followed by the Samsung Behold. Does anyone know of a better physical keyboard than what is found on the G1? The Motoblur is not bad, but the design of the G1 keyboard is great.