Extra Space Storage (NYSE:EXR – Get Free Report) and Iron Mountain (NYSE:IRM – Get Free Report) are both large-cap real estate companies, but which is the superior investment? Get Extra Space Storage alerts:Institutional and Insider Ownership99.1% of Extra Space Storage shares are held by institutional investors. Analyst RecommendationsSell Ratings Hold Ratings Buy Ratings Strong Buy Ratings Rating Score Extra Space Storage 0 10 6 0 2.38 Iron Mountain 0 2 4 0 2.67This is a breakdown of recent recommendations for Extra Space Storage and Iron Mountain, as reported by MarketBeat.com. Given Iron Mountain’s stronger consensus rating and higher possible upside, analysts clearly believe Iron Mountain is more favorable than Extra Space Storage. Net Margins Return on Equity Return on Assets Extra Space Storage 27.80% 6.70% 3.27% Iron Mountain 5.54% -85.44% 3.30%SummaryExtra Space Storage beats Iron Mountain on 9 of the 17 factors compared between the two stocks.