Fee structure, diversification, and sector focus set these two ETFs apart for investors seeking stability in consumer staples.The Vanguard Consumer Staples ETF (VDC 0.03%) stands out for its lower costs and wider diversification, while the iShares US Consumer Staples ETF (IYK 0.47%) has posted somewhat better recent performance and a marginally higher yield.Both ETFs are designed to give exposure to the U.S. consumer staples sector, offering investors access to companies whose products are considered essent ...