User blog comment:Chrismh/Aikatsu Friends Appeals Plus & Minus! ~Final~/@comment-3237624-20190219095818/@comment-5138366-20190220160519

Personally, my favourite unit is Honey Cat, but it's true that Reflect Moon is rather close behind them... In my opinion liking some idol and liking their songs is very closely connected. For example I cannot see myself following an idol whose songs would not appeal me. Another thing is that when you really like an idol you gave them "more chances" when it comes to liking the stuff they do. It happened with numerous songs sung by various idol units that did not blow me out of the water at first, but because I was willing to give them a chance they slowly grow on me (as in take the time for me to get into them). If you want an example from AF!... at first I thought Okemaru was okay, but because it's by Ema, my favourite character, I would play it outside of the anime more than eg. Aine's, Mio's, or Karen's songs, so I grew to like it a lot.

I agree that appeals may be slightly different from songs, but you cannot help but be influenced by the idols performing it as well... I mean if there are two appeals you like, let's say, equally (or it is hard for you to decide between them), then if asked to pick only one, it's only natural you are going to pick that of the idol you like more.