Why are you looking for "active" VC's? Why is that a metric? It seems to me that if I were looking for a VC I'd be on the lookout for those who make fewer, more conscious investments, instead of the standard fund that just shotguns their money and plays the numbers.

Side Note: A little game theory... it's probably not a good idea to use a data source (crunchbase) that is heavily influenced by those who you are currently negotiating with. Sounds a little like back in 2007 when Goldman and Co were the ones rating the same junk securities they were trying to offload.