You're comparing apples to pears.
VoodooShield is an anti-executable. OSArmor is a post-exploit protection. Although they may be paired together, I don't specifically see the need for it.
If you're planning to go with Kaspersky Cloud Free, I would use it along with VS, since it will help with the lack of Application Control. If you're using the full suite, then you don't need any of them.