Interesting idea, and possibly overdue, might help private retail traders.
I wonder if there's a simpler way through this though? I note whether each pair with a major currency as base is either bullish or bearish using simple TA criteria. Right now, this tells me that AUD is bearish in all of the 7 pairs against the other major currencies, while CAD is bullish in all 6 of its pairs charts against majors. This suggests the optimum pair to short right now for me would be AUD/CAD - take a look at the chart to check this but it would be hard to find a more bearish daily chart.
Meanwhile, the EUR is bullish in 3 out of 7 major pairs, GBP is bullish in 4 of 7 major pairs, so EUR/GBP is pretty neutral, not attractive to my trend-following strategy for either going long or short, agreed?