I like retired girls and newcomers too, as long as the girl attracts me, everything is fine.
Well, Ai Uehara never "clicked" to me. Her body is hot but her face doesn't really appeal me (but hey, beauty is very subjective and depends on people, some like, some don't). You said it yourself, what the girl is willing to do make her attractive. So, it's more about performance rather than look. That's fine, everyone has a different way of choosing actresses to watch.
With my approach, you will notice that it's "normal" that Ai doesn't fit my likes. I check the girl's face > body (as long as the girl isn't out of shape, I don't care about small/big boobs). After I find an actress hot, I check her movies to see if the themes are what I like (GF, wife, blowjob, harem, soap, schoolgirl, ...). If she has enough content matching my preferences, I start to follow her.
You prefer nasty/freaky girls over just girls that look pretty, I'm kinda the opposite (even IRL). The girl needs to be cute. Those actresses are the perfect example :
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They are the kind of girls who make me say "damn, they're fucking cute, wife material" while they have good blowjob and fucking skills (passive/not showing interest girl isn't my thing).
That being said, if there are other guys who have the same tastes (actually, I think probably more are like you here lol), it's normal to have a different opinion on actresses.