This was a fantastic video about the realities of safes and how they're manufactured. As well as some of the misconceptions about UL ratings.
From my own personal exp I'm all for Ft. Knox. They have a INCREDIBLE warranty program. If its ever involved in a fire or attempted to be broken into they will REPLACE and UPGRADE at no charge to you. IMHO you can't go wrong with Ft. Know.
If you've got one foot in yesterday, and the other in tomorrow, than you're pissing on today.