As an early stage startup, your selection of investors or advisers will have a significant impact on your future.  How to identify these guys who will produce the best results over time?
Here are some points to think about:

Are they better at identifying future trends and making targeted investments?
Are they better connected and better able to [...]

This morning I was reading on the net about the performance of VC funds. What are the methodologies used? How LP (Limited Partner) returns are measured etc? In the process I found a good series on the subject  by Fred wilson:

VC Fund Performance – Some History
VC Fund Performance – Selection Bias
The Rise And Fall Of [...]