I know what a tiefling is, but as an old-schooler I find it weird that they're so commonplace in recent years. But now I have to look up what the heck a "Aasimar" is? I had D&D expansion books that laid out what it would be like to play as some of the weirder races. They allowed for centaurs, minotaurs, lizard people, bug people (thri-kreen), even a half-lion centaur thing called a wemic. But tieflings didn't exist back then or they were as rare as Gith or something. And even the monstrous humanoid wiki page I used to remind myself what some of these used to be doesn't have aasimar as a thing so i guess it was made up later just to be a player race, which is odd because I had the same impression tieflings were the same way and I'm wondering why some of these others that were already laid out have apparently now been swept under the rug. I remember when Drow were only evil monster people and it was a huge thing when they became playable. I would have expected the same thing to happen with minotaurs and the like. But instead they are just making stuff up or something lol
Not judging though. I just find it odd, but amusing
After looking them up I see that they effectively are tieflings so my argument is invalid since they're just the yin to the tiefling yang so if you make one you have to make the other
As for favorite races I'd probably go with the Sylph, human sized fairy people descended from Nymphs. So they're all gorgeous and magical
/rant