it really does matter to what kind of use are you aiming for and who will be the user.
A carbon steel chef knife will be amazing for a very hard user, it is easy to sharpen and gets a really sharp edge without being a great sharpener. but it does rust so if the user cannot take the responsibility and take care of it it will become dirty in no time.
if a sword will be made from very tough steel it will break at first impact.
so for a better advise please state what are you going to make and I'm sure many people here will love to help you choose the right metal