Question What brand of safe do you like and what do you look for?

[Woody]

to be clear, all gun safes are the easiest safes to break into. That being said, Amsec (American security) are some of the best)
The fire protection will only be as good as fast as the fire can be put out.
Once it gets hot enough, even with the protection, the plastic on your guns will melt and the wood products will spontaneously combust in the interior.

Not to mention the proverbial elephant in the room, all that ammo.