I voted for 1950-D beat up, since I haven't found one in circulation, while I've found numerous Buffaloes and
War Nickels, and average examples are just 50 cents to a dollar typically, while you'd get at least that much depending on how "beat up" it is. 2009 is still under my radar since they are modern, but I'd consider saving one shall I CRH Nickels again.
My dream find though (1913 V is impossible since they're all confirmed by their owners) is 1916
DDO in VF or better condition.