If you are looking for a polymer handgun, the Smith & Wesson M&P is 2 steps above the Glock. The XDM took most the M&P's improvements over the Glock and added a grip safety, but the XDM's ergonomics are still not as good as the M&P.
If you are looking for something small in .380, the Walther PPK is top of the line.
I was down on Sig for a long time (the ones that I was issued in the squadron were worn out) but I have a new P-226 Navy that I am in love with.
FWIW when I was doing the research for my first pistol I read a few places that there were issues with the M&P magazines coming loose during firing; can anyone speak on that? I ended up going with a XDm .40 that I absolutely love and recommend.