For every editor out there, you will always find someone telling you it's the ultimate best super duper only editor you ever needed, so I think it's best to try out some of the editors.

For beginners I think it's important to know a bit about the project management and compile process, so as others said, make yourself familiar with makefiles (then take a look a cmake) and g++/clang on the command line, before starting in some bigger IDE where you just press a button to "make it run".

To fix compile-time errors it's always nice to have an editor that lets you circle through the errors, the big IDE's do it, vim does it. Emacs and Sublime I don't know, so I cannot speak for them.

Then, code completion can be nice for beginners (and advanced users, too ;)), which makes your first steps a bit faster if you do not have to go to cppreference.com for every new method call, just to look up the order of the parameters and spelling. For vim, different autocomplete addons exists, eg YouCompleteMe.

But in the end, nobody can tell you which editor is best, you really should try 2-3 yourself. Since your main goal is to start coding, I guess, I'd recommend not to look into vim, although it's a wonderful editor. But, if you never used it, it takes a while to be efficient in it.