it is really up to you what way is best, i have had 4 d&c's now and it really isnt painful they will ask you to not eat or drink anything for hours before it, they will give a general anaesthetic, usually they tell your dh to wait in the ward, for control of infection and for the privacy of other patients in theatre, the d&c usually takes about 20 mins, you then go to recovery untill you come round from anaesthetic then they take you back to the ward. The d&c is probabally not the sort of thing your dh should see anyway.
I dont know much about the medical way, i dont know how long it takes, or what its like pain wise what happened the last time you had a loss was it a medical one at home?
Hope whatever way you chose is right for you