Also in my own opinion I would recommend doing it in this order :
Nephilim ( get used to the difficulty ) , son of sparda , heaven or hell ( very easy as everything dies in 1 hit. This also lets you maximize all skills and fill up your inventory for DMD ) , Dante Must die ( unlock Super Dante for Completion ) , hell or hell ( Use super Dante to make this a cake walk ).
Just my opinion :-)
Last edited by RA1NKING; 01-15-2013 at 02:49 PM.