Which DNA company is best??

Which DNA company is best?

I noticed a few questions about which DNA companies I used and which I like the best. Well I have given my "spit" to two companies and shared my results with a third company. These are:

1. 23andMe 

2. AncestryDNA (found on ancestry.com)

3. My Heritage. They let me send my results and they are constantly sending me family matches.

Of the three the best for finding connections to new (previously unknown) relatives is ancestry.com. 

They will use my family tree and try to match my ancestor with the common ancestor in the other person's tree.  The catch is this: you must have a family tree and they must have a family tree. I started my tree a decade ago and for a year or so I did pay. But then I stopped my account. I now have a free limited ancestry.com account through the LDS church, and continued to add to my family tree. Anyone can visit a family history center at any LDS church during the hours they are open. This changes by the actual church times and availability of the workers, so call first. I am unable to research any information that is not from the USA but I still have access to birth & death records and US Census records. I also have paid for an account with Newspapers.com.

I also look things up on Family Search but I don't trust their records completely. I have found errors where other people have written "don't change this" and I know the information is wrong because I have done the research and I have the documentation.