Depends on your objective and world view. If you believe that you need to have a recognized medium of exchange for an economic collapse, "junk" silver and maybe a few eagles will be best. If you believe that you need to provide long term preservation of wealth for yourself and maybe next generation, gold and acreage. I prefer gold because land costs a lot to hold it - taxes, improvements, equipment, etc. But land can be preferred because it gives you the opportunity to provide food for your family and a lifestyle that is very different than cubeville in the office high rise. There is no absolute "best"...it depends on your financial and lifestyle goals and your outlook on the future.