I have used various social bookmarking. In my own experience I have had a much better experience with Stumbleupon than Digg. These are some of the reasons I prefer Stumblupon to Digg. I would be interested if people have a similar or different experience.
1. Stumbleupon Rewards the Best Articles
Stumbleupon seems more democratic. You can submit a good article to digg but it can fly off the new section as quickly as you submit it. Generally stumbleupon is better at picking up on good articles. At digg everything counts on the 24 hour window after first submission, and your network of friends. At stumbleupon it seems less important who are your friends and most stumbles I receive are good quality. Spam doesn’t seem a real problem at Stumbleupon.
2. Stumbleupon doesn’t ban the best sites.
Many times I have seen my favourite sites getting ‘banned’ by digg, usually because they are ‘too successful’ Examples that come to mind include Pick The Brain and Copyblogger. (true sites can come off the banned list, but it can take a long time)
3. Stumbleupon has more Positive Pages.
It seems that on Digg stories that do best are the negative ones. See article at We The Change on Digg At times, the negativity can be overwhelming. When browsing the internet, I like to see some positive stories and articles of inspiration.
4. Stumblers Like Stumbleupon
Whenever I goto Digg the top stories seem to be complaining about Digg, which I find completely uninteresting. At Stumbleupon you aren’t bombarded with articles complaining about rigging of Stumbleupon e.t.c.
5. More Diversity of Interests
Stories that do well at Digg tend to be fairly narrowly focused on a small number of aspects. Stumbleupon enables a greater diversity of topics, it is also easier to choose the topics you are interested in. If you like topics like self improvement or minority interests you will find greater coverage at Stumbleupon.
6. Stumbleupon has Beauty
Some stumbleupon blogs are beautiful to visit. e.g. Tutu stumbleupon
7. Stumbleupon gives more traffic.
True digg can give a mad rush, that brings down you server; but overtime I find Stumbleupon gives a bigger traffic boost. Problogger agrees here. Why Stumbleupon sends more traffic than digg
8. Stumbleupon has a better quality of comments.
Stumbleupon comments are usually simple and fairly positive. Reading comments on digg often leave you in a state of despair (Of course, you can go to Digg without reading comments)
9. Stumbleupon seems to attract a greater diversity of web users.
Digg users seem to be focused on young males 18-31. Stumbleupon is more diverse.
10. Stumbleupon is easy to Use
So that’s my experience – Stumbleupon is better than Digg.
Of course, if I get on the home page of Digg I’m quite prepared to completely rewrite this and say what an absolutely marvellous, and inspirational site Digg is…. </sarcasm>