The current highest currency is the Kuwaiti currency, which is DINAR
which is short with the name KWD
1KWD equivalent to 3.31 USD
Dude you'rr talking about the value, the strongest still is the dollar and would probably remain so for a long time. Currencies base their in usd and a usd crash would most likely cause pandemonium on not only the us but the global market. And i think the dinar that has the higest value is the bahrain dinar not the kuwaiti