I cannot decide which is the best new smartphone for TMobile: NexusS, HD7 (windowsmob7), G2 or.. other?

I’ve had the G1 for more than a year – really since it came out. I’m also not going to get any deals because of the nature of the ‘new’ contracts. I will basically have to pay full price for whatever phone i choose. I am on a family plan and would have to disrupt and restart 3 other people to switch carriers… which could be ok. Thoughts?

(BTW, congrats to the fluther team for their recent Twitter-join):)