east or west .com are the best ... .com domains are indexed much faster by search engines other than .net and .info .. also .com have good resale value...
If you have serious business web site I suppose that just recommended to have all of them and that is not expensive. But .com domain name should be core.
I think it depends on what you need it for. For throw away sites, I use .info For most of my blogs I use .info and .net If I'm making a white hat site, then always .com
.com is universally accepted dot extension, .net is ok but .info is useless .. typically the pricing at sedo and other auction sites would give you an extensions value!
In my opinion the hierarchy is .com, .net, .info search engine's eyes. I don't think the user cares if it's a .net or .info
pretty much always .com is better. Unless you have an organization then go with .org. .nets can be a good too. Usually that's your only choice though so it might be what you have to go with.
i agree with you, lewda. it's depend on purpose ( content ) our site. If you want to sell something, it maybe consider to use .com and if you want to share any information or everthing else, it maybe consider to use .info