Just to clarify MY reasons for posting about which dogs I personally prefer, and not wanting to get into senseless arguments.
Firstly I did say NO TERRIER breed, not even a Yorkie, as when they get annoyed they bite, and will not let go, and they are hunting dogs which still have very active hunting imprint in them.
I said no to GSD's because I have seen too many "reliable" ones of them suddenly turn and attack those closest to them, in two cases, biting the faces of very young children and doing a lot of damage.
In my opinion, NO dog can ever be said to be 100% reliable, it just needs a trigger to prove otherwise, having said that, many do live very peaceful lives and do not cause problems, but the the risk is there and any owner who does not think so is fooling themselves.
I said about Bullmastiffs as I have owned one for the last 8 years, and he is the most laid back dog I have ever had the pleasure of owning. They do not bark at everything and everyone, but when something is amiss, they start with a low rumble, and build up to an ear shattering bark, before anything else.As with all dogs he has his likes and dislikes, he hates Border Collies, and Black Labs, but only the males, he is fine with females and will defer to the smallest female. Aso they do not like copious amounts of walking, they like a gentle stroll for about 30 minutes, as they were bred as a Gamekeepers dog to protect them from Poachers, so were used to walking for most of the time.
The Mastiff, which we have is similar in walk needs, a stroll is fine, then back to sleep. They have been around for a very long time and been used for all kinds of purposes, incuding eating Christians in Roman times, carrying bombs across from allied trenches in WW1 and being blown up with the bomb at the German trenches, which is one reason for their decline to almost extinct at one point.
Great Danes, of which we have had 5, were bred for hunting wild pig, and like a quick run for about 20 mins, then back to bed, or a walk of about 40 mins to an hour.
All 3 of these breeds are very people orientated and will do anything to please the owner, wanting only love and affection in return, as well as food, which is the ultimate goal. They are very quick to learn and are very protective of their "family" in a passive way.
Lurchers are new to us,having just adopted one which was abandoned by travellers, she loves a mad run , generally in a circle, for about 10 mins then settles down to walk and sniff the entire countryside as she goes, but after about 20 mins wants her bed.
Dog ownership is a very subjective matter, and each owner has their own particular reasons for having their breed of dog.
Questioning why people have, or recommend, a particular dog is irrelevant, and it is only by owning a certain dog thatyou can know why some people prefer their kind of dog.
A dog is, generally, the product of its upbringing, and even "problem" dogs can be turned around with the right care and attention.