K/D to date for the 47M: 1.51. High, still lower than 38Js or Ta-152.
Oddly enough, the K/D for the P-47D-11 is 1.41.
Number one victim of P-47Ms, by a wide margin, is other P-47Ms, with 862 kills to date, or, over 11%. Coming in at a distant second are P-51Ds at 462. Though if you consider the kill numbers by P-47M for the big three Buffs, 17s, 24s, and Lancs in aggregate, it comes to nearly one thousand.