It absolutely is a toss up I guess.
But I still wonder what is absolutely the best to cool your home.
An old window a/c method or a full blown central heating plus a/c method unit? My opinion is equal of both. Because if you take care of them both, they absolutely have the same exact results in cooling your home. I absolutely have seen no difference in the power or way that the a/c works in both window cooling units or central heating plus a/cs. The only thing I can say in favor of window a/cs maybe being a better choice is that they take much less service than having a central heating plus a/c method unit, and with a window a/c method you do not have to pay for or suppose about Heating plus A/C service of any kind. The only thing you need to do with the window a/c method is to change the air filter from time to time. That is it. It is a much less headache in that aspect plus it also saves you quite a bit of money compared to having to do all the usual service on a central heating plus a/c method to keep it working all of the time. That doesn’t make a single better than the other, it just makes a single cheaper plus less service involved, but really I know there is no right or wrong answer as to what category of a/c is better. It is all up to the personal opinion of you plus yourself. That it what it comes down to.