What is your favorite metric to use when comparing real estate investments

[Michael Zuber]

If you had to pick just one metric to compare real estate investments what would it be?

Let's say you went out on a weekend and saw 10 investments properties.

What metric would you use to rank the 10 choices 1-10 or best to worst?

For the record I use yield some call it cash on cash but I am curious what others might be using to rank their investment options.