I own a Sig P239 in .40 and a Glock 26 in 9mm. Before I bought the 26 I had extensive experience with a Glock 19.
When I bought the Sig P239 I went to pick up a Glock 17. The officer that sold it to me, talked me out of the Glock in favor of the Sig. I was primarily sold by the Sig's DA/SA operation. Having a harder pull on that first shot meant less chance of an accidental discharge to me.
The Sig has been a great gun, but definitely not perfect (I am sure no weapon is). I have had it 6 years and have put several thousand rounds through it easily. I only use quality brass factory ammo in my pistols. That said I have had several FTFs in the SIG (probably 5 or 6 out of thousands of rounds).
The next time I went to purchase a Glock 19 (my neighbor has one and I have shot it many times, great gun) I ended up with a XD-9. The XD-9 is a fantastic pistol. I prefer it over my Sig any day. It's lighter has a good safety system and very consistent trigger pull. It reminds me of an updated Glock. If I were you I would definitely consider a Springfield XD series pistol.
Finally I couldn't resist any longer. I had a chance to use a Glock 26 at the range and after about 50 rounds, I really started getting comfortable with it. By the end of my second box of ammo, I was putting the holes where I wanted them from 20-30 feet. So I picked up a Glock 26 with night sights and a Bianchi Model 100 holster:
http://www.copsplus.com/prodnum2968.php
Personally I prefer Glocks over Sigs, but as you can tell everyone has their own opinion. I feel totally confident in my Glock or my XD as neither has ever had a FTF or any other malfunction. I am confident in my Sig, but there is a bit of doubt in my mind as I have seen in malfunction a few times...