US Military 9mm Compared: Sig Sauer M17 vs Sig P226 MK 25

In this review, we show a comparison of two 9mm pistols from Sig Sauer. One is old, one is new. One is hammer fired, one is striker fired. The Sig Sauer P226 MK25 and the Sig Sauer M17 (military overrun, not a P320 or P320 M17). The P226 MK-25 was used by US Navy Seals. The M17 is a standard issue now for many (not all) in the US Military.
Which is better? Which would you choose?