I believe the best rewards are.
1. AIB visa platinum - 0.5% cashback max €225 per year
2. Avantcard reward+ - 1.25% cashback max €12 a month
3. KBC - 1% max €10 per month
As an existing Avantcard customer they should be able to convert your account straight away without needing to get a new card. You can take it from there if AIB is worth the hassle switching.
1. AIB visa platinum - 0.5% cashback max €225 per year
2. Avantcard reward+ - 1.25% cashback max €12 a month
3. KBC - 1% max €10 per month
As an existing Avantcard customer they should be able to convert your account straight away without needing to get a new card. You can take it from there if AIB is worth the hassle switching.