Favourite herding breed!

From these breeds listed below which one is your favourite?
after you have voted please explain why you chose this breed over the others. If you happen to choose other please post what breed you like in the herding group!

1. Australian shepherd
2. Border collie
3. Sheltie
4. Cardigan welsh corgi
5. Pembroke welsh corgi
6. Collie
7. Australian cattle dog
8. Bearded collie
9. Australian kelpie
10. Catahoula leopard dog

you can vote for more than 1 breed but you can only vote for a certain breed once!