You'll need to also define  your monthly revenue and expenses for each to truly compare them. 

@Colin McGowan most lenders, and all traditional lenders, as far as I know, will make you escrow taxes and, usually, insurance.

i have noticed the days on market, but quickly found out that has no bearing on how i negotiate price. no sellers so far are desperate enough. interesting note on the price per square ft. didn't even think about that but as i compare different properties in the neighborhood, that'll help me with a consistent value. 

As for the 50% rule, the BP Calculator also lists the 50% rule as part of the final list of info and I've been taking a look each time at what appears there compared to what I get when I break out the components individually... to get a better sense of both approaches.

When they do you're typically talking about non traditional banks, or you're getting into the commercial side of their lending.

I must agree with @Jay Hinrichs, I have never been to Napa, but have heard to many times WW compared to this area. 

Your traditional lender won’t fund them.

Personally when I can make more in profit in doing a flip in 6 months compared to re renting for years I will continue doing flips For me 10 or even 15% c on c is leaving money on the table with so many other ways to make more money

I started my career buying and selling bare land I like it.. especially carrying paper its a easier form of cash flow compared to tenants..

Hell I’ve only been in real estate for a few years and I can go get a multi million dollar construction loan from a traditional bank today for WSJ + 1%, so 4.25% and stabilized loan for around 4%