Are blue-chip stocks or ASX ETFs a better investment?

Here at the Motley Fool we endorse long-term investing. 

History tells us that markets like the S&P/ASX 200 Index (ASX: XJO) and S&P 500 Index (SP: .INX) can bring annualised returns between 7-12%. 

Many savvy investors fail to beat these markets through trading…