pain engine vs parasite engine

Hi again I currently have a cronos pain engine in my army , all his tail weapons are magnetized and his CC weapons all push on and off, he is probably one the easiest models to interchange weapons with, anyway I have ordered another one, my question is should I make the next one another pain engine or a parasite engine? on paper the parasite doesn't seem as powerful what do you think? Thanks

it depends on what you have in your army and what role you want it to fill.
from what i understand, the parasite is a pain token grab bag for your units.
if you like abusing the share the pain, go for it.

i like the idea of having the cronos dropping into enemy infantry through a WWP
and watching them get slaughtered!

something that may help out is a list to get a better idea of what you may need.

Dark Minion

Oh thats exactly what I want to do with him, that means I'd have 2 pain engines coming through the WWP
Below is whatI have so far, I have only played 3 games with this pretty new army and got spanked each time but I know DE take practice.

1 Archon
1 Lelith
1 Hemon
5 Scouges
5 Incubi
5 Mandrakes
1 Pain Engine
2 Beast Masters with 2 razor wings flocks and 10 Kymera
10 True born
10 Warriors
10 Wyches
2 Raiders
2 Venoms
1 Razor wiing fighter.