JKump, some may flame me but that is too nice to be a duty pistol. On that note I would like to use one as my duty pistol, but I could not stand to lose that much $$$ if it had to be turned in as evidence. I have no doubt it would stand the rigors of duty usage, but for the price you could get two weapons for duty, a primary and a reserve weapon.
My issued 4506 has stood the test of time so far, used when issued and many many rounds later still keeps humming like no tomorrow.
And I too throw in another vote for Sig, Glock, and also the HK.