I would say Ayu's past concerts were the best..only problem I have with her recent ones is that she keeps singing the same songs!! and add a few new songs from her latest album...I wished she would sing songs like To Be...
Koda's concerts are entertaining cuz it's so full of energy and you never know what she's going to sing next...her setlist is always so different...
Overal, I'd say it's a tie between koda and ayu
