I love Asian tgirls, but I don't discriminate based on race! I also don't discriminate based on body build! I like all types!
If I had to talk about the Brazilian tgirls, I would have to go on about another exposition about culture, and how fashion/trends/sexuality differs in different countries. In Brazil unlike many other cultures, women like to bulk up, and by bulk up I mean they hit the gym!
They have huge butts, huge thighs, and unbelievably small waists! They mostly (generalised) have a silhouette similar to "Who Framed Roger Rabbit's" Jessica Rabbit! In Brazil this is sexy, and of course this is the look most girls will look for out there.
It is completely different from the opinion I had about Asian t-girls! Like Ila said this is subjective, and can be argued, but there you go, it's what I think!
See for yourself, this is what they call 'Funk' danced by Mulher Melancia:
www.youtube.com/watch?v=4Uag7QiUdZM
As Acorrentadas:
www.youtube.com/watch?v=3-KBz63NUTU
In general I think you'd have a much better chance of finding a Brazilian tgirl like the cartoon below, than an Asian one... but it's possible!