This can be quite a subjective topic, especially considering how many versions of MF cloths there are!
In terms of applying wax then id always recommend a foam pad as they don't get too 'clogged' up and can be rinsed.
MF Cloths - ours are designed as a tight weave on purpose. These allow for grab without the cloth become 'claggy' thus reducing any risk of marring.
If I was being honest and critical we don't have a long pile buffing MF cloth so I use an Alloy Wheel Drying Towel, which is kept just for that job!
Hope this helps?
Ta
Neil