My car's battery is more than 3 yrs old now (stock). I am thinking of replacing it and I cannot decide between Amaron or Panasonic.

1SN for Amaron is P3.5k and Panasonic is P3.2k but with shorter warranty. My stock battery is Thailand and I am very impressed that it lasted so long! The dealer said Panasonic is also Thailand so I am thinking if Panasonic is better though it is cheaper?