WinMo 6.1 or 6.5 for Sprint TP 2

[Mac11700]

Hello All

I have a newbie question for all of you. I just got my Sprint TP 2 and it has WinMo 6.1 installed on it. I got this because of what I was told at my local store by a technician there. I traded back in (under 30 day rule) for this phone,and really like how it operates as compared to the Hero I had.

My question for those here seems to me a simple one,but it might be more of a minor preference thing with all of you,and I don't know wither I should upgrade or not. So,which is the best OS a newbie like me should start out with..the 6.1 version or the 6.5 version? Is the latest version with all of the tweaks available here more stable than the stock 6.1 version I have now?

Thanks for you help folks

Mac