Hmm. I dunno. They're not all the same, and Goth and Emo have absolutely no relationship. Emo is Hardcore Punk meets Glam with influence from Gothic Film, whereas Goth is like, I dunno, Joy Division fans who take influence from Gothic Architecture. Totally different scene, mannn. Goths are usually in their 30s, now, hahha. Here anyway. That was an 80s thing...
I'd say Emos tend to be Hot here, especially boys. =] F***k.
They can't be scary. I mean, wee skinny boy dripping with eyeliner and in converse, trying to put the moves of fear on? Hahaha. They're not overexuberant enough to be scary in that Vampire Transvestite way, and they can't really be freaks, they dress very unobstinately and keep themselves to themselves for the most part, right?
They're scary if they have like, loads of piercings and stuff, aha. I must say I kinda find emo guys fairly hot though, so long as emo is just their fashion sense, and they don't actually act really depressed all the time,.=P
In general, people who need to identify with a 'group' to tell them who they are. They're just like anyone else: Hot, scary, annoying, intelligent, idiotic, sweet and caring, etc etc. As far as subcultures go, they're pretty drastically different. The only real common link is a small amount of fashion crossover and both being considered 'alternative', lol. One could probably call my style any number of different things, on any given day, if they were the kind of person who needs to put a name on something in order to have it make sense.
I say just like what you like and don't worry about what it should be called. People will always try to simplify things so that they can understand them, and that includes stereotyping and lumping people together, but I think the simplest way is just taking things as they are.