I think .us as it is smaller and easier to type in if someone was taking through word of mouth or whatnot, but this is just my opinion.
If u talk about building site on it, there's nothing to be worried about the extension. As long as u can get the traffic for it, u should fine. But for domaining purpose, i'll say go for .us , coz .asia domain is seems didn't get a good value after its launch.
Depends on the project. They both have great uses. Imagine that I wanted to create a network of sites that list all the airports in every region of the world. I could register airport-list.us for the USA list and airport-list.asia for the list of asian airports... It all depends on the project...
Depends on the content of your site and the target location of your visitors. If you are after a global audience, then .us would be better than .asia. However, .com would be the best.
allways try to get dot coms from my experience till now perform far away better than any other extensions .
If .com still available, that should be your first choice. Otherwise, choose .us as it much shorter to write. But if your site is mainly for Asian, then .asia is better for you.
It really depends on what you are going to use it for. If it is for a United States site I would definitely go with .us. If it is going to be a site developed and marketed to Asia I would go with .asia. Otherwise I agree .us is best because it is cheaper and has the double meaning "the 2 of us."
The more development the better the ext. Go .us If you can afford it, get one of the top 3 (.com/.net/.org) they have more mass public appeal.
The extension is not your concern - the quality of the design, clean code and great text content is where your thoughts need to stay
.us is the first choice, but registrations in .US are limited to US companies, US citizens, legal residents, and entities with a 'bona fide' presence in the US.
I love .asia domain but i think .us domain will be better, and is cheaper than .asia domain. and if i not mistake that not too many people use .asia domain, maybe u can use to develop website and enter alexa top rank