In my opinion, Malika is excellent and Nam Doc Mai is also excellent!
In my taste scale, both of them are a good five (5) on a one to five scale.
If I had a small space to plant and had to choose only one, I would choose Malika. My malika tree is kept fairly small tree and my Nam Doc Mai is a medium size tree despite the heavy prunning every year.
I guess I have an old regular Nam Doc Mai. My tree is approximately, fifteen (15) years old.