Hi Modz1,
I don't know which is the best single controller for those tasks, but if you have large quantities of spare cash, a few of the
Euphonix MC Mix controllers would be ideal for mixing within Logic. I think both the Novation Nocturn and NI Kore 2 would be good for controlling virtual instruments, but does anyone know how well they work within Logic?
One of the Allen & Heath XONE controllers would suit Traktor, for example the
Xone 1D or the new
Xone 4D. Vestax also have a few nice MIDI controllers such as the
VMC 100 and the VCI-100 or new VCI-300.