Here is a couple of good top 10 lists.
http://www.dogpolitics.com/my_weblog..._most_dan.html
http://doggies.com/blog/2008/07/15/t...gressive-dogs/
Top 10 most aggressive dogs.
10. German Shepherd - I thought this one would be higher, because of their use in police work.
9. Border Collie - I can see this. They face off against sheep much larger than they are every day.
8. English Springer Spaniel
7. Beagle - This one surprised me. My beagle demonstrates every submission posture known to man.
6. Pit Bull - Popular legend has it that these dogs are the most aggressive, but I guess they really aren?t, if the study is on target.
5. Australian Cattle Dog
4. Akita - I had also heard these were dangerous dogs, like the pit bull.
3. Jack Russell Terrier
2. Chihuahua
1. Dachshund - one in five owners reported that their dachshund had tried to bite strangers, and one in 12 reported that their dachshund had tried to bite them!