What routing protocols, if any, do you feel it's okay to use on firewalls, from a design standpoint?
With the extra load it's going to put on firewalls, which do you feel it's okay to use, if any?
Also depends on the placement. Usually FW traffic is either in one end and out the other, or vice versa. No point in really trying to figure out where to send something when there is only 1 direction left to send it.