Maybe they could alternate, one year all the games are played in America and the next year all the games are played in Japan. And Then a coin flip could determine who gets Home Field advantage. Also, not all the games would be played in the host country's team's stadium. For instance, if the games were played in America this year (hypothetically) only the White Sox' home games would be played at U.S. Cellular, the Marines' home games would be played at Wrigley Field in this instance (If the Yankees were the White Sox the Marines would play at Shea, if the Astros were the White Sox, the Marines would play in Arlington, etc.. The clostest Stadium to your own is where the team from the other country would play).
thats just how I would organize it. But let's face it, this will NEVER happen.
I disagree, though I think the Sox would win, its not as lopsided a matchup as you think. As a follower of Japanese baseball I can tell you that the Chiba leadoff man is extremely fast. I think he is the Center Fielder as well, not positive though. They lack offense as theyre biggest offensive threat is Benny Agbayani (who is a monster over there), who wasnt that great off Major League pitching (granted, he was a pretty good hitter, but there is no doubt that he fizzled out.). Their pitching was good and their defense was great, maybe better than that of Chicago considering how they play pretty much all of their games on completely shaven infields (all dirt, no grass, like American softball fields) or artificial turf. And its not the artificial turf we have over here now, the grassy stuff. IN japan they are still using Astroturf.
But I think the White Sox would take it in 5.