Love the passion dogs bring out in people.
We have an airdale and she is the biggest soppiest thing, not a bad bone in her body but stubbon, perfectly controlled when out until she has a better idea and tries to make friends with that other dog on a lead and suffers selective deafness.
We also have a 5 month old black and white standard poodle, such a different animal, so quick to learn, still sweet natured but more interested in pleasing us than checking out any other dogs (so far) and where as both airdales we have had have gone through a destructive stage and the standard schnauzer we had shredded the sofa when tiny (we had to video it to believe it, blamed the airdale as the schnauzer was so tiny and young), the poodle hasn't even put holes in the teddy we gave her, (household insurance that covers dog damage has been used more than once).
My tip is not so much about the breed you get (although from my research I would suggest you seriously consider the labradoodle's or goldendoodles for nature and brains) but make a book up of the behaviour you want, i.e. no going on furniture, no teething on hands, shoes are not toys, to crate or not to crate (make it a place for treats not punishment so you have a time out space they like) etc. speak to others on their tips on gaining appropriate behaviour and make sure everyone in the house signs up to the list in the book, consistent boundaries etc early on can save soo much hassle later on.
Enjoy
K