I use both since there are many times Photobucket takes too long to load. So basically Imageshack is my standby image-hosting site while photobucket is my primary one.
I hate Imageshack, it's slow and you cna hardly upload anything on it. I use Photobucket for my tags and stuff, for tutorials I use my FTP or game-image. Photobucket is coo'
PB! I do not like how Imageshack makes it so when you click the images it brings you back to imageshack.....so annoying. Plus I like PB's interface better.
PB is for storing images for later use, Imageshack is for just temporary stuff. You can use photobucket to have sales. You can't do that with Imageshack.
PB hands down image is slow, deletes older stuff, you can lose your image link, then have to upload once more. PB pwns Imageshack
I use photobucket for my photos and stuff, and then I use imageshack for all my graphics needs and everything. Only problem is I can't find them later.
I use ImageShack. I like their new layout and toolbar. It does get annoying when I clear my cookies and have to find the registration e-mail w/ link.