Shag here (mom and dad's rather spoiled 6 yr old Dobe) doesn't have a preference (can you tell?) but if he could speak he'd tell you he just LOVES as treats those pigs ears that you can buy at Sam's Club...
My 9mo old Yellow Lab loves the rolled up pig ears he looks like he has a cigar hanging out of his mouth all the time.
Oh Wait I have pics.
Chris, Labs eating plums and a clean Garage
Address:http://community-2.webtv.net/wheelchairsite/ChrisLabseating/