Hi all,
Picking a dog has to be one of the most fun and maybe most difficult decisions a guy/gal makes. Obviously, I'm a Dobie fan and a lot of them have the qualities I appreciate: smart, willing, energetic, right size for me, short hair, unflappable (ears aside), good with kids, other dogs, etc., but no pushover.
A need for protection is a little down on the list for me, but my take is that 99.9% of security issues are taken care of by just the presence of most of the dogs mentioned here. I've been interested in Schutzhund for a while now, belong to a club, and love it for its own sake.
My best advice is to do a lot of homework on what you're buying and realistically evaluate what your interests and abilities are. Get a pup that is likely to do the things you most want and don't compromise on those qualities.
For example, if you want a dog to play with the kids and dogs at the park, I think you would be stacking the deck against yourself by trying to add Schutzhund or reliable protection requirements (they're not necessarily the same thing) to the list.
Matteo has a beautiful dog from what looks like a top Schutzhund/protection breeder. He's obviously happy with his choice, and for all I know his dog may be a joy at the park.
The thing is, that some of the working dogs I've seen (not just protection) could just about be from another planet compared show dogs of the same breed. A lot of people just aren't aware of the amount of drive that working dogs have and would have no idea what to do with it.
Good luck on the pup(s),
Cheers,
Dave
PS - Consider health issues. Dobies are notorious for heart problems. All breeds have some issues. Malinois(es?) have very few.