I liked COD3 on wii, although most people here hated it so you want get much poisitive comments.
Personally I like mohh2 better.
Their both the same although COD has a better series.
But mohh2 is online and it's so fun and sweet. Allows up to 32 in 1 game!
Although you can't use friend codes and it is region locked.
You've made a great choice pre-ordering Medal of Honor: Heroes 2. You asked about the online...it's fantastic. There are no friend codes. EA Nation works great. Have fun.