HD2 vs Android on TMO

[Bowzern10]

Alright...I searched and couldn't find it otherwise here...and I'm sure it's a statement of the obvious but here goes:

I'm coming from an old G1 and enjoyed the Android experience. I will be remaining on TMobile for this next phone for the next year and would just love an HD2...and would love it more as an Android platform.

I'm deciding whether to pick up a MT Slide or try an HD2 and am looking for some input from you guys.

My general uses:
Phone...use it a fair amount for this
Music in car
Navigation (I do lots of appointments on the road)
Weather (because I'm a weather geek and love keeping radar on while on the road)
Associated software that dumps texts to my email account
and I enjoyed the cloud support of Google with my data.

Thoughts on the most appropriate platform needed. Thanks.