Fair enough, but let's face it, the reasons the right considers him a great economist have little to do with his serious economic research, and everything to do with his hackish rants against the inherent evil of redistribution.
The Austrian School is generally opposed to econometric research because of modeling error, but also because few Austrians prefer econometric research. Economics is a behavioral field. Austrians tend to look inside of themselves to better understand human behavior.
The right likes Austrians because neoliberals taught conservatives that Austrians were anti-Keynesian.