Hesitation between htc hero and diamond.

[Taaten]

I am going to buy new device. I am struggling between htc hero and diamond. I know that the first one is on android os and second is WM 6.1. Which one do you suggest to buy? I want to use it as entertainment gimmick, surf the internet, watch a movie from time to time whilst standing in traffic jam or so. And of course take advantage of all apps available for the mobile.
I live in Poland and these two along with Samsung I780 and Nokia 5800 are the best offer for wi-fi model in affordable price for me.
I haven't had any pda device yet, that's why i don't know how to choose the pick of the bunch.

Thanks in advance.

PS I tried search option, but non of the result was useful or i addressed a wrong question. :)

[Meleeeee]

considered the things you want to do, the hero is the better choice. winmo is great for special applications and exchange support etc (but this is also implemented now with htcs firmware), multimedia-wise android is better positioned.

[Taaten]

As i have said i need phone for the internet access, cool apps,watching video, maybe few games( do the old games from pc work on wim?), of course phoning, sending text messages. I am looking for something cool with applicative options.
I don't care about photo camera or pure business amenities. It should be funcional and fulfilling rather entertaining purposes.

What about differences in interface, is any of these significantly better?