Favorite shape?

[Buckshot]

Canadians and bulldogs, especially saddle bit bent bulldogs.

 

[KevinM]

+1 for bent blast Bulldog

 

[smokinbriar]

Any pipe with a saddle bit.

 

[tso-giannis]

Billiards, dublins and some cuttys are my favorite.
But you can never say no to a classic English buldog