well as for me , i prefer persona 3(JAPAN). instead of persona 4
The Reason are :
-The Main Protagonist was using pistol while Persona 4 must using glasses and able to see their persona which is disappointing me
-During Dialog in some events,Persona 3 have more choices rather than Persona 4
-The game system in persona 3 is rather simple , while persona 4 is little bit tricky
-The free activity schedule and access location is wider in persona 3 , while persona 4 is narrowed
-The story and ending in Persona 3 is truly indeed magnificent, from my point of view , the main character lived and fulfill both of his duty and destiny/prophecy until he died . I can refer him as saint or prophet since he sacrifice his sleep time to get stronger any time , reaching the top floor of Tataros,experiencing the gravity blast by Nyx , Fighting the Moon (Nyx).
while persona 4 is rather disappointing that the character need to watch the tv to see who will the next victim murder will be at night ,making money through part time job ( too much wasting time doing part time job),less check points (how the hell do you think that the main character will last long) inside the tv dungeons even during events . even there is the event where the persona 4 Highschool decided to a having field trip visiting to persona 3 Highschool ,they just only see one stupid girl with glasses as a guide and while the ending rather just transferring plus saying good bye to friends.The End
Thats why persona 3 is better.
sorry a little bit spoiler .