Looking for a new phone, NEED HELP

[painkillaz]

I currently have an HTC 6800 (Mogul). I was looking for a new phone. I have Sprint and not wanting to change carriers. I know the Touch Pro is coming out soon, but I was debating whether or not to get a phone with the Palm OS or Windows Mobile or a Blackberry. Also, will Android be able to work with the Touch Pro? Looking for a high end device so money isn't a factor. I just want a good phone with no headaches. I've noticed Windows Mobile I occasionally have to restart and it freezes but I like how I can change it up unlike Palm. Any help is appreciated!
Thanks
Shail

Edit: Preferably something with a QWERTY keyboard