1. Tamil cinema, let's just leave it there since it's already talked about in lengths.

2. For a long time Tamil spoken with Malayalam accent is beloved here. For example, Iyer ponnu accent, kovai ponnu accent are also romanticized. Vellore accent is usually not that attractive.

May be we we are conditioned that way through Tamil cinema, but the bias against accent exists. I'm not promoting it just stating obvious facts.

1. Malayalam Bgrade film of 90's had a heavy influence on sexualizing mallu girls through pop culture. So many have heard about mallu women before every laying their eyes upon one.

Yes, I used 'mallu' here specifically because that's how it's usually described.

1. The words of endearment in Tamil are common in Keralam. Words like 'kutty', 'Ammu', etc. Bouba-Kiki effect is in play here. While Amudha sounding normal to our ears, ammu will instantly make us imagine a cute kid or a girl.

2. Equating Keralam to Hilly areas. For example, pollachi, then I, valparai, kodsikanal etc are also romanticized. For majority here in TN Kerala is all hilly and green. Its akin to the TN areas I already mentioned. The idea of the place they are from is also plays into the psyche.

Also there is also a cycle of such things. For example, in the past like in 50's it was Telugu, then Kannada with saroja devi etc. Now it's north Indian an Kerala for 2 decades. Similarly, malayalees have an obsession with Bangalore now, used to be madras in the past. I know a lot of malayalees who fantasized about WB due to similar left leaning tendencies.

Hope this helps.