It has been proven that the world's current system has Failed and that is why everyone is Calling for the Gold Standard being Re-Introduced. It has also been Observed that The Gold Standard has been Very costly and in-efficient so now what ? . There was a Good system or thinking about the SDR's but that system has not been updated for 5 decades. Thus everything is STALE and out of current norms.. The Countries Like America and UK especially at this point of Time have defaulted (Because they are not able to meet their Expenses from Their Revenues and Top Cover that They Keep Raising The Debt Ceiling and Changing laws).. The effect would be disastrous as we all will see in future. but Coming Back to the Point of Standards. Whatever the pros and cons for Both One has to realise That Both These standards were NOT Followed. I personally would follow the GOLD Standard as whatever is backing the Currency can be seen/felt and should be there .. others are just bookish figures which can be changed easily..