Many people are afraid of Doberman’s although everyone I have seen end up in my lap. Do you want any agression? Do you have a lot of
family or visitors?

Can you introduce your dog to the new dog slowly?

I might take the Weimeraner since you are familar with them.
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Daughter’s home-doberman that is a lap dog.
Friend’s home – Doberman another lap dog.
Knowledgable that many people are afraid of Doberman’s.

The Doberman Pinscher has been used as a protection dog, due to its intelligence, loyalty, and ability to physically challenge human aggressors. Doberman Pinschers were once commonly used in police work and in the military. The breed was used extensively by the U.S. Marines in World War II, and 25 Marine War Dogs died in the Battle of Guam in 1944: there is a memorial in Guam in honor of these Doberman Pinschers.[8] In these roles, they inspire fear. They are often stereotyped in such roles in movies (where they are trained to exhibit seemingly “aggressive” behavior), and video games, consequently many people are afraid of the breed. A related problem is the misunderstanding of their legitimate roles; because guard dogs are trained to neutralize unwelcome intruders, many people mistakenly believe that Doberman Pinschers are vicious.

For more information visit: http://puppylounge.com/index.php?option=com_puppy&Itemid=9&page_url=main/breed_profile&id=130
Temperament
Weimaraners are fast and powerful dogs, but are also suitable home animals given appropriate training. These dogs are not as sociable towards strangers like other hunting dogs such as the Labrador and Golden Retrievers. Weimaraners are very protective of their family and are very territorial. They are aloof to strangers, and must be thoroughly socialized when young to prevent aggression. From adolescence, a Weimaraner requires extensive exercise in keeping with an energetic hunting dog. No walk is too far, and they will appreciate games and play in addition. An active owner is more likely to provide the vigourous exercising, games, or running that this breed needs. Weimaraners are high-strung and easily excitable, requiring appropriate training to learn how to calm them and to help them learn to control their behavior. Owners need patience, as this breed is particularly rambunctious during the first year and a half of its life. Like many breeds, untrained and unconfined young dogs often create their own diversions when left alone, such as chewing house quarters and furniture.

It should never be forgotten that the Weimaraner is a hunting dog and therefore has a strong, instinctive prey drive. Weimaraners will tolerate cats, as long as they are introduced to the cats as puppies, and many will chase and frequently kill almost any small animal that enters their garden or backyard. In rural areas, most Weimaraners will not hesitate to chase deer or sheep. However, with good training, these instincts can be curtailed to some degree. A properly trained Weimaraner is a wonderful companion that will never leave its master’s side.
for more information visit: http://puppylounge.com/index.php?option=com_puppy&Itemid=9&page_url=main/breed_profile&id=404
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http://puppylounge.com

Doberman is one of the working dogs. While, Weimeraner is one of the sporting dogs. These two big dogs are both alert, smart and good watch dogs. But, Weimeraner has more energetic and highly trainable than a Dobie. For comparison test, checking out the ff sites might help you decide:

http://dogtime.com/doberman-pinscher.html
http://dogtime.com/weimaraner.html

Good luck
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http://www.dogtime.com

get a great dane or german sheperd..
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