What is beteer Menyoo or Map Builder?
What are the pros and cons of each of them?
@Kristal. Depends on what you want to use them for. For making simple map stuff, learn to use CodeWalker. For making true interiors, look up dekurwinator's mlo tutorials, you'll end up using multiple tools.
Map Editor has various issues, mainly it is so out of date it doesn't work for everyone. You'll have to use NativeUI v1.7 instead of the most recent NativeUI. Then you'll have to switch NativeUI to the latest version to be able to use mods that require the latest version. Trying to pick the entity you want to place in MapEditor sucks, the entities spin in mid air. Also, even with map builder community downloads and/or other prop lists, I always had many invalid objects when trying to pick stuff. Menyoo will have a similar issue based on my past experience. You will not run into that issue with CodeWalker, at least not that I've found yet.
Menyoo has issue placing doors. They fall through the map once you place it, put it in the game, then you go up to it in the game and it will fall through the map as soon as you touch it. It has other issues, but that was the main reason I quit using it.
Menyoo is more like a swiss army knife of what it tries to do. It is also a trainer and can do many other things. Map Editor is just for map making.
Best advice would be to try them all out and see for yourself. Anything made in one can be used in the others, so you aren't stuck with using one if you start a project.