iPhone 3Gs User likes to buy HTC Desire HD

Hi,

I have been using iPhone 3Gs for almost 5 months and gets bored with iOS4 with so many issues and less customize other than Wallpaper and background. After using iPhone used with best apps and decided to moving to android with best customize of HTC sense UI. Few days back i got the information HTC desire HD and Z is lanuching to India by November. Its time for sell my iPhone 3GS and falling love with Android 2.2 +Sense UI.

Iam deeply concered about whether i can go for HTC Desire HD or Z with below factors.

1) RAM comparison
2) Camera and HD video
3) Perfomance
4) Battery Life
5) Future upgrade compablity for android 3.x,4.x....etc

Hope u guys help me on this. I know this is the best platform for users like me , with help of great people to get best of cooked ROM for WM,Andorid and buying Tips

Please advice me which one i can go for it , Apple's iOS4 make me to Move over to Android Lover.

Thanks,
Ram

As i mentioned in my post. I going to sell by iphone 3Gs and moving to androisd. Currently iam willing to by ethier HTC Desire HD and Z . I am not sure which is one is best