This article was originally published July 3, 2016 and updated September 28, 2016.

Dividend aristocrats are stocks that have increased their dividend pay-outs at least once annually for 25 years or more and thus, inevitably, attract income-seeking investors. All the more attractive are the dividend aristocrats that not only offer high-yield payouts but promising future growth. Mountains of evidence proves that dividend paying stocks beat the S&P 500 and companies that manage this while also offering strong growth prospects are the icing on the cake. With this in mind, let's take a look at some of the top dividend paying stocks to buy now.

BULLISH ON INCOME STOCKS? IMAGE SOURCE: AUTHOR

Refining the dividend aristocrat list

Energy and financial stocks were omitted from the list because their earnings are likely to move in step with energy prices and the state of the global financial system. As we've seen in recent years, both are subject to a lot of volatility.

Similarly, businesses that are undergoing significant restructuring have been culled from the list in favor of more stable ones. Finally, since diversification is important for those looking to construct a portfolio of stocks, two stocks from each of the sectors covered have been selected.

Income investing

For those who are focused on current dividends and income, the table below shows the 10 stocks selected with dividend yields and payout ratios. The latter is simply dividend divided by earnings and is a useful indicator of a company's potential to increase its dividend--a lower number is better.

That said, it's also a good idea to try and measure how consistently a company tends to grow its earnings--is the company subject to violent earnings fluctuations which impair its ability to pay a dividend?

To help answer this question I've also included the standard deviation on their return on equity (ROE). Don't worry too much about the financial jargon, it's actually quite simple. ROE is simply net income divided by shareholders equity--a way to measure the profitability of a company--a higher number is better. Meanwhile standard deviation is a measure of how much, in this case during the last 10 years, ROE has dispersed from the average.

Ultimately, ROE standard deviation is just a measure of how a company's profitability might vary--a lower number is better.

 Company Sector

Dividend Yield

Payout ratio

Free cash flow payout ratio

ROE Standard Deviation

Lowe's Companies

Consumer Discretionary

 1.8%  36%  23%  6.5

Genuine Parts Co.

Consumer Discretionary

 2.8%  53%  35%  2.1

McCormick & Co.

Consumer Staples

 1.7%  49%  48%  1.4

Procter & Gamble

Consumer Staples

 1.2%  82%  62%  3.2

3M

Industrials

 2.7%  53%  51%  5.0
 

Illinois Tool Works

Industrials

 2.1%  40%  36%  7.5
 

Johnson & Johnson

Health Care

 2.7%  57%  54%  4.4
 

Becton, Dickinson and Co.

Health Care

 1.6%  66%  33%  4.6
PPG Industries

Basic Materials

1.5% 27%   21%  17.5
 

Ecolab

Basic Materials

1.2%  41%  26%  5.7

DATA SOURCE: COMPANY ACCOUNTS, STANDARD DEVIATION IS OVER LAST 10 YEARS

Here's how they companies stack up in their respective industries. Genuine Parts Co.'s (GPC 1.35%) mix of automotive parts (a relatively recession resistant industry) industrial & office products means ROE tends to be stable and it sports a healthy current yield. McCormick & Co. (MKC 1.68%) also has a consistent ROE, and the spice company looks set to benefit from long-term demographic and cultural trends as more consumers come to favor spicier foods.

It's a close choice in industrials, but Illinois Tool Works (ITW 0.66%) gets the nod over 3M  (MMM 0.86%) due to a lower payout ratio, and readers already know how the company is expanding its operating margin -- suggesting increased FCF in future.

Becton, Dickinson & Co.'s (BDX 0.42%) medical products give it relatively stable earnings, and for similar reasons Ecolab Inc. is favored over PPG Industries (PPG -3.12%).

DIVIDEND INVESTING GENERATES INCOME AS WELL AS CAPITAL GAINS IMAGE SOURCE: GETTY IMAGES

Growth considerations

Having established the importance of earnings stability (standard deviation of ROE) we now need to look at two deeper questions. First, what is a company's potential to grow its dividends? Second, assuming a stock's value is the sum of its future dividends, what does its current price imply for the kind of overall returns investors can expect from the stock?

It's not important to go into the theory--I've put the equations in for those interested--, but 'g' in the table below represents the rate at which a company can grow its dividends--a higher number is better.

The implied overall annual return is shown as 'r' in the table below. This simply the theoretical annual return investors can expect based on the current stock price--a higher number is better,

 Company D/FCF

10 Year Average ROE

g= roe (1-D/FCF)

P ($)

r=(D/P)+g

Lowe's Companies

23%  16.6%  12.8%  78.42  14.6%

Genuine Parts Co.

35%  19.7%  12.8%  96.91  15.6%

McCormick & Co.

 48%  23.9%  12.4%  100.06  14.2%

Procter & Gamble

 62%  17.6%  6.7%  83.13  9.9%

3M

 51%  31.7%  15.6%  168.94  18.2%

Illinois Tool Works

 36%  22%  14.1%  106.24  16.2%

Johnson & Johnson

 54%  23.5%  10.8%  115  13.6%

Becton, Dickinson and Co.

 33%  23.1%  15.4%  165.79  17%
PPG Industries  21%  28.9%  22.8%  108.18  24.3%
Ecolab  26%  18.9%  14%  118.6  15.2%

DATA SOURCE: COMPANY ACCOUNTS

Here again Genuine Parts looks relatively better placed in terms of total return, while McCormick & Co. looks to have more growth prospects than its peer. Again, it's close with the industrials, but Illinois Tool Works' cash flow should improve in future years while 3M faces questions over its organic growth prospects.

Becton, Dickinson and Co. is again superior to its peer, but the standout performer in the second test is PPG Industries -- in fact, its numbers are strong enough to justify switching choices from Ecolab. The paintings and coatings company's key end markets are automotive and construction. Both industries are cyclical, and have seen good growth (particularly automotive) in recent years -- making its ROE numbers look good. Nevertheless, PPG Industries' combination of high ROE and strong FCF generation make it the preferable choice for investors who can tolerate a bit more cyclical risk.

Summing up

All told, dividend investors could create a mini portfolio out of these five dividend aristocrat stocks. All have the potential for strong annual returns to come while also offering a recurring and growing income. Moreover, if you believe that dividend investing is a valid strategy for seeking out stock outperformance, then the five companies discussed are well worth a look.