AUSSIEDOGGER,
There are about a million opinions on AB's mostly falls down what line you prefer. I personnally wouldnt have one of these dogs. TO BULLY and definately not built for speed or for endurance. I prefer a more standard performance looking bulldog most commonly seen in the Scott Bulldog. His website is owlhollowkennels.com
Another site that has some great proven bulldogs on it is
www.whiteknightabs.com There HOG HAMMER dog is pretty much what i think a perfect catch dog should look like.
I grew up with performance and OSW AB's and these are just my opinions..... I have yet to see a BULLY (JOHNSON) type bulldog be able to keep up or have a stable enough temperment for me