I use combination locks, all set alike, for all my guns. This is a bad idea: as an experiment, I just ran the numbers 000 to 100 through one of my locks. It took three-and-a-half minutes. So any thief with half-an-hour's patience could unlock one of my guns, then use the same number for all the rest.
Let's face it: trigger locks are virtually useless. They exist to placate the powers that be, not to ensure safety.
Most gun safes, even the very expensive ones, are just as useless. There is a video floating around cyberspace that shows a man with a crowbar ripping a top name-brand rifle safe open in less than two minutes. (Can somebody post a link to this?)
Sorry, but unless you live in an old bank office with vault attached and keep your guns in a bankers' safe, your guns are vulnerable.