You could always get an American copy of Platinum from ebay. But I really don't think the improvements between D/P and Platinum are as big as those from R/S to Emerald - although it's still the better version.
You should definitely get Zelda: Phantom Hourglass as one of your three, and as for a third either The World Ends With You, Mario Kart or Sonic Rush. Those rank as my top 5, but there are other good games like the Final Fantasy remakes or Mario that you can’t go wrong with.







