this is a glass half empty/glass half full type of question, it pretty much boils down to perspective. If we consider the security of investment, gold is certainly better than bitcoin. deflationary just the same (limited supply that is getting destroyed), accepted, trusted, and generally it has a stable value. as far as security goes, you really cant beat this (provided you have physical gold, and not paper gold)
but if you consider the profitability of the investment, in this time of course bitcoin is the better investment. people are buying this shit hand over fist, and the value has skyrocketed for seemingly no reason. its hyper liquidable, at least for the position size of the average user. and its damned quick (it takes a while to sell gold, trust me on this).
so, just depends on what you are looking for