I raised a Collie, a St. Bernard & a Newf [still trying to raise him].
Out of the 3 breeds, the Collie was the easiest to train. That said though, she was also the most stuck up B**** that you could have. She was the queen, & she let you know it.
The St. Bernard learned fast. She was the most gentle girl I have ever meet. She loved people. She was Daddy's girl & her favorite spot was Daddy's lap.
Yes, we did have a 135 pound lap dog. She love water, & she slobber t. There was no part of the house & furniture that did not have drool hanging of off it at one point. My front windows needed daily wiping if I wanted to see through them. She liked to entertain herself with a few stuffies in her mouth & a ball between her legs running through the house. As she got older she turned into a big couch potato.
Never had a more gentle & laid back dog in my life
Now to our Newf. He was hell to raise after the other two. He is not near as gentle as our St. Bernard was.
He is also to smart for his own good. Now that is getting close to being 2 years old, the gentle giant is slowy coming through. I love his personality,there is never a dull moment when he is awake. He learns things really fast. I never though I would say this, but I am now stuck on the Newfie breed. I don't know why, maybe because he helped me through some rough times, even though he was going through his own rough time [raging hormons]. I think only Newf owner can under stand.
But with all giant breeds, they stay puppies for a long time. When you have a 150 pound newf that decides to act like a puppy you better be prepared. The gentle giant comes with training, love, respect & age.
Don't know if that helped any, but these are my opinons.