`make menuconfig` still works fine, I use it to configure kernels for use on Android. Since I build those on a server somewhere on the 'net - actually it sits under the stairs but for all intents and purposes it could have been on the other side of the world - it is handy to be able to use a console-based method.
I do prefer `menuconfig` (combined with `oldconfig`) in any case, possibly out of habit but also because this type of text-based user interface often is much faster to use than its graphical equivalent.
Not really. I just don't bother building my own kernel any more - the distro I use (Ubuntu Studio) comes with one that works great out of the box. Nice to know I still could, though .. ;)
But .. nah.
;)