IBGP Question --- Router Reflector or iBGP Mesh

["Erik Sundberg" <sunder () appscorp net>]

hello,

I have a ibgp question?

There is a Diagram at http://erik.appscorp.net/bgp/ 

Which Setup is better, the Router Reflector or the ibgp meshed? 
What are the positive and negitive to each setup.
Which Setup is commonly used / best pratice / More stable

Diagram at http://erik.appscorp.net/bgp/


Thanks in Advance

Erik