Dyn Internet Intelligence (Formerly, Renesys) vs Telegeography's Global Bandwidth Research Service

Hello guys, Does anyone here have any experience with Dyn's Internet Intelligence or Telegeography's Global Bandwidth Research Service? I am looking to use them to answer two questions: 1. Which is best possible path available, given the current internet infrastructure, from point A to B in terms of latency and jitter? 2. Which careers should I talk to get those paths? Just wanted to know if anyone here has any experience with them or if there are some other tools that I should be looking into before making the purchase. Regards, Arqam