I think the vast majority of cam failures that you read about are caused by or are due to problems other than the cam itself. Wrong valve spring rates, bad geometry, break-in oil, contamination, etc. Most internet warrior engine builders don't know the first thing about root cause analysis and it is much easier to blame the cam manufacturer than get to the actual root cause (or admit you f-ed up to the whole wide world).
I would not be afraid of any of the name brand cam manufacturers. I have had good luck with Elgin, Howards, and Comp in a wide variety of engines. However, do the math. Just because Comp says to use Valve Spring XYZ, that may not be correct. They have very general recommendations that are based on much better selling engine platforms than the FE (I.E. SBC, LS, Windsor V8, etc), that may have very different geometry considerations.
On the other hand, I had Oregon Cam Grinders regrind the cam for my 7.3L IDIT (try getting Comp to make you a cam for that particular engine...). They did a great job, and the cam works great, and the engine runs great with it. I have no trouble recommending them.
