I don't do any printing, but I like Photobucket's options for archiving and displaying images. You can create nested folders and password protect them at any level, and when you click on an image it can be zoomed to the actual image size. That's the thing I really dislike about Flickr, that they dictate image size. I also like that I can set different backgrounds in Photobucket, because I prefer to see my images against black rather than the white background at Flickr.

The one thing that I really like about Flickr that Photobucket doesn't seem to offer, though, is the ability to set a Creative Commons copyright for your images.