From your list, I would rate the Ruger Mark II at the top for sure, followed closely only by the Ruger Mark I. The Beretta Neos, S&W 22A and the 22/45 I would put so far down the list that they would fall off and be forgotten with no regrets.
To be fair, I have no hands-on experience with the Beretta Neos, but my eyeballs work and my brain interprets what those eyeballs see and the design guy was sloshed that day and his boss must have been buying the drinks and matching his effort. The Smith & Wesson 22A is a pretender and is much more suited to the class of toy-like rimfire guns rather than serious, solid, dependable pistols. The Ruger 22/45 and from what I have seen in the Mark III guns are simply a step back from the Mark II which is the undisputed pinnacle of the design, a design which was the BEDROCK for the success of the Ruger company.
If we may venture from the list, I can heartily recommend three others immediately. First is the Buck Mark, which I don't particularly care for in actual use (mostly due to the difficult to grab and manipulate slide) but I do own one and I can attest to it's build quality, accuracy and durability.
Next would be the Sig Trailside, available now under the name X-esse, which was a budget target pistol built by Hammerli in Switzerland. Mine is extremely accurate and has the finest trigger I happen to have in a rimfire pistol and I own a few. I cannot speak to it's longevity/durability, but I got mine used and I've only managed to put a bit over 1,300 rds through it thus far, but it is absolutely a keeper.
Lastly, consider a classic Colt Woodsman, which was the king of them all before the Ruger semi-auto was it's first genuine competitor in the market. As they made the Woodsman and it's variants for -MANY- years, their collectible prices are definitely kept in check especially when you find them with some genuine wear. This, coupled with the extremely high numbers of them built means that you can own a fantastic shooting example of one of the finest handguns in man's history without paying crazy high collectible prices. You end up with a very refined and extremely well built classic. I cannot say enough about these fine pistols. Shop for Second and Third Series pistols from ~1950 through the late 1970s. One of these will certainly cost you more than the others in this discussion, but they are fine handguns.