What are the top TGP's & MGP's
 

I've heard that TheHun.net is one of the biggest. But what about WorldSex, ALFA, DANS something or the other? What are the biggest TGP's in the world?

Investigate the popular page counters (while they're still in use) :)

Get a big one like worldsex and check what other tgps are listed there, then do it again and again like a tree search.

or use Alexa, it's not 100% reliable from my point of view but should be ok for this task

Hack into your competitor’s servers and look at their stats.

Here is a list I found sometime ago, it surley NOT up to date but it's gives you an idea anyway,
http://www.beadultwebmaster.com/best-tgps.html

Mist

http://www.tgpstats.com/?

Maybe u already knew it