First a quick question.
How do you get with those drops, both should be 1 more?
kabalites in venom A 2
kabalites in venom B 3
ravager A 4
ravager B 5
Scourges 6 (remember just because you put them in the air/shadows etc, does not mean you should not deploy them there, thus they count as a drop, same goes for the mandrakes)
That being said, I would go with the mandrakes and razorwing in small games because it gives you an option that can actually do something in melee. This makes the list slightly more versatile. You already have quite a few lances dissies and missles, that I think you will not be in big trouble against mecha lists.
On the other hand if your playstyle and regular opponents mean you never get into cc then the other list might be slightly better.