QUOTE (keiryu40 @ Jul 13 2009, 10:51 PM)

lil wayne ain't rap, it's pop or just plain fake hip hop music. there are only rap parts in some of his songs, but's it's not really rap music.
Korean artists from Korea are so ridiculous. They think rapping is about speaking really fast. They don't know wat da fawk rap is about. I can smoke those mofos in a rap jam.
The mainstream rappers like 50cent, g-unit, jayz, tupac, etc are all about the money. these guys used to be really good and their music is real hip hop back then. They had to write bad lyrics to get into mainstream and make riches.
for real hip hop, check out rap music back in the 80s or early 90s.
Plenty of underground Korean rap actually sounds more like old school American rap and doesn't sound like Lil Wayne, 50 Cent, Soulja Boy, etc. in their lyrical themes, choice of beats, and style of flow. The rappers from Soul Company come to mind, for example. May I ask which Korean rappers from Korea you're referring to? It sounds like you're talking about very mainstream Korean "rap," which is not common and hardly every actually rap, and pop group "rappers." Love 'em or hate 'em, Tiger JK (so he got his start in Cali, sure, but his career has been in Korea and in Korean), Verbal Jint, Kebee, and plenty of others seriously don't just talk fast in Korean and call it rap. You sound like you don't know your stuff when it comes to actual Korean rap.
That said, I still think America does it best. It's the most established here, it's been part of the culture for decades and gone through more stages of development here, there are just more people doing it in all sorts of different styles, and it's accepted as a musical genre much more than in Asia in general and much more on the average North American person's radar at least to some degree. It's tough to make a living as a serious rapper in Korea because of the censorship on Korea's airwaves and TV and because the hip-hop acts that do make it and appeal to the broader public have done it so far by mainstreaming themselves. Hell, even mainstream artists aren't pulling in a lot of revenue from album and single sales these days, so how much worse is it if you have a much smaller fanbase in the underground only? It's great how more Korean rappers are 100% from Korea now, but the underground there depended really strongly on an influx of Koreans from English-speaking countries, especially the U.S. for its start and its growth, not to mention that Korean rap artists will readily name prominent American rappers as their primary sources of inspiration.
I actually listened to Japanese rap before I listened to Korean, but I disliked the number of Japanese artists trying to do "gangsta rap" and the number of rappers in Japan who seemed to really be trying too hard. It seemed to me like a lot of the Japanese rap I heard was either so-called "party rap" that was lighthearted and more like pop or an imitation of hardcore American gangsta rap, which has never been my favorite rap sound. There are a few artists from Japan I like, and domestic hip-hop is better respected and more popular there than in the rest of Asia, but the types of sounds I like in terms of beats and the sound of the rapper's flow are just more common in Korean rap. Doesn't hurt that I understand it more than Japanese, either.
I've heard some underground rap in Mandarin and Cantonese, and some of it was quite good, but as far as I can tell there isn't a very big rap scene in any Chinese dialect right now, and I've heard more bad than good, to be honest. Rap seems to still be in its infancy in China, HK and Taiwan. Same for Vietnamese rap: it's out there, but a lot of it's not that good and there's very little of it compared to in Japan or Korea. Actually, the best Vietnamese rap I've heard has consistently been from Vietnamese Americans, Canadians, or Australians and not actually straight from Vietnam at all. I've heard a little bit of Thai rap, but there doesn't seem to be very much of it at all.
Since nobody's even mentioned it, I also think there are a lot of talented rappers from Latin America rapping in Spanish. I'm not talking about reggaeton here, I mean straight-up rap in Spanish, which is very often about social issues like widespread poverty, government corruption, immigration/emigration, and violence. There are a lot of independent rap acts in Spanish out there. I also like how some Spanish language hip-hop acts incorporate traditional styles of rhythms and melodies into their work, like Orishas, who are originally from Cuba. France has a relatively strong rap scene in Europe, but I'm not too knowledgable about it more specifically and don't understand French. The US, Korea, and Japan are not the only places with decent rap scenes.
To summarize, since this is a really long and kind of disjointed post, I'll say that American rap comes first for me, then I'm not sure whether to choose Korean rap or Spanish-language rap from various Latin American countries, but I listen to more rap in Korean and like how a lot of it is very laidback and sounds more polished along with very little hardcore gangsta rap type of stuff going on, so I'll go with Korea for my second. Japan is up there as one of the countries where rap has really taken hold and grown well, but I'm personally not partial to more than a few of the many Japanese rappers I've heard. As for the rest of the world, there aren't very many countries with more than a very small rap scene that I know of, though I've heard rap from France, Brazil, Nigeria, Britain, Australia, Germany, Denmark, Israel, and a few others.