LogFAQs > #922763855

1. Pokemon Alpha Sapphire - 210:48
2. Animal Crossing New Leaf - 59:50
3. Persona Q - 57:55
4. Fire Emblem Fates - 45:18
5. Pokemon Blue - 39:20
6. Pokemon Moon - 27:16
7. Fire Emblem Awakening - 26:11
8. Pokemon Crystal - 24:33
9. Phoenix Wright Dual Destinies - 16:44
10. Ace Attorney Trilogy - 15:14

i did change 3DS a while back though so including stuff from there, there'd be like another 45 hours added to Fire Emblem Awakening, enough from Rune Factory 4 to be 5th maybe, and Pokemon Y would be up there too.