Please take this survey on venture firms and their correlations. So far with n=203 Andreessen Horowitz is the top firm followed by Sequoia, USV, Kleiner, Khosla and Accel. https://www.surveymonkey.com/s/hackernews

I'll post the results in the comments below in about 2 weeks. https://www.surveymonkey.com/s/hackernews