I wouldn't advise gigastack or clustering. I've had a number of customer sites report a lot of different problems with them, mainly large deployments. In each case we got rid of all of them.Instead of Gigastack or fiber optics, you may want to cons...
If you're running dual sup's, hybrid may be the way to go because SRM and HSRP offer much faster failover times than RPR and RPR+. If not, as other posters have mentioned, its all a religious issue. I much prefer native over hybrid, because it simp...