You can use:
(1) A sense based ROM based off sprint software, i.e. 3.70
(2) A rom with Sense removed, based off sprint software
(3) CM with 4G found on the xda forums
It really depends what you want. There is no "best", it's all preference. However, my short list would be:
(1) Myns or Evio
(2) Vaelpak
(3) there's only 1 option here.
More information if what you're looking for would help.