I have two smith M&Ps, so I'm a little biased. I carry a 9c and I have a full size 40 bedside. I think they're great - not a hiccup with either. The 9c is extremely accurate for a compact and the 40 is one of the better handling 40s I've come across - not as good as my Sig 229, but not that far off.
I think the Ruger is a great choice as well. Never shot one but I've handled them and they are a very well balanced pistol. Lots of people on these boards swear by them and Ruger, if anything, stands behind their products.
If the Made in the USA requirement is loose, then the Glock 19 is a great choice, as is the CZ P01 and P07 (-P01 has a metal frame, P07 polymer).
The SD9 is a revamped Sigma from my understanding, which is not a bad choice, I just like the M&P better. I've never been a fan of the XD - in my hands it just feels too chunky, but it's another well liked, proven platform.
The beretta 92 is a great pistol - it was my first, still have it, IMO it's as iconic as the 1911. Heavy for a CCW but great for the range and home defense. Accuracy with the 92 is tough to beat for me.
THe sig 250 - I have just read too many things about it that turn me off. No experience with it, and the concept is interesting, but there are so many proven platforms out there, the 250 just doesn't interest me.
Hope this helps - good luck and be safe!