So many people voted for Axfc but no one is sporting the pros of it? XD
Well, I only and always use Axfc. For some reason all other uploaders refuse to work for me (even when trying to to upload something small) or are wierdly complex for signing up.
Axfc is very easy once you figure it out, and for those interested I made a tutorial on everything you need to know with it on my YouTube (back during the Megauploader FBI scare). There are pretty much no ads whatsoever, no waiting times, and great customization for the upload - passwords, delete passwords so only you can delete your file due to no accounts, how many people can download it, date activation/deactivation, a large support for file types, pretty much unlimited file size until 2GB, and you can tell the site if it won't be up for long/downloaded much as a nice thing towards other users. And on large files they have an easy to use human-checker thing that's much easier to read (and easier on computer systems - my computer takes a bit to load up Mediafire from all the adds and features but Axfc is simple and quick). And the Japanese can instantly understand the site so it may slightly help in getting the bank around.
Sure, you don't have an account and every year or so you should check your files, but never once in a year and a half of using it have I encountered any problems. The only reason links become down is because the user doesn't check their link often enough or no one is telling them it's down (I know Japanese users who once they were told the link was down reuploaded in a few days). I don't need the site to manage my uploads, I can manage them just fine.