7M, but I'm biased. 2JZ can be described in one word: exotic.
I dont know that 7M really sounds "better" than the 2J, but I prefer it. 1J sounds baller too, but I love me my 7M, loud turbo spool down,spool up, external WG dumping, and type S. I didnt choose the type S, but I'm a sucker for its...