"Best" contains too much opinion to really be able to be answered. "Very good" or "really nice" is so much easier. LOL. I am not sure if you were talking production guns or not, but I am having a full custom built as I type this by Rich at http://canyoncreekcustom.com/
. I will come back and post pictures (and full build specs, if anyone cares) when it is done.
I bought all of the parts for it and only used stuff that I have a lot of experience with from competition or, in a few limited cases, heavily researched. I didn't cut any corners, and I can tell you that one thing it will not be is a "best value". Like with many things, you generally get what you pay for, but I will admit you can sometimes pay too much for what amounts to overkill, too. For me personally, it is supposed to be a "best grade gun" and I am really looking forward to receiving and shooting it. If Rich does his part it should be really good, but I wouldn't even be so bold as to say it is "best".
More importantly, I can easily predict that many here would not pick it as their favorite due to some of my choices in the build. For example, it will not be a .45 (shock, awe, I know), at least not at first. I used an SV Infinity interchangeable breechface slide and it will be initially built as a .40 S&W / 9mm switch barrel. I could go back with .45 later but I doubt I ever do, honestly. It will also be two-tone with a dark slide (IonBond-like PVD finish) over a hard chromed frame. Some folks prefer pretty gloss or matte blue, parkerized, stainless, or gold accents. I pretty much like them all, but I have wanted a custom two-tone 1911 since I saw one of Frank Pachmyer's "Combat Specials" in a magazine when I was a kid.
There are other examples, too. It will have a squared trigger guard. Although aesthetically I kind of like the traditional round like I am sure many here do, I prefer shooting a square guard and it does scream "custom". There are some great pictures on Rich's website above of squared guards. The serrations will also be somewhat unique, a very slight variation I came up with that hopefully will work out great; it will have adjustable sights rather than fixed, the list goes on.
That is fine though of course; I am having it built for me and my tastes at the moment. Nothing says we can't all have our own likes and dislikes or that we can't buy or have another one built, right?
(A couple of really nice ones above, by the way)