Pros/Cons of each Marauder build

Irrelevant to me since I've never gone on a Zakum/HT run in my life.

You don't rely on drain to heal you at bosses, its for damage. I learned that the hard way trying to use it as heal at pianus. Barrage/double upper doesn't have range and doesn't outdmg drain for a while. Barrage does have that nice invincibility though.

I just don't see myself spamming Drain to do damage when I can go up close and use my more fun skills. Drain just seems like a total "Nightlord" type skill.