We are currently debating amongst our team whether we like #5 or #6 better but you're definitely a front runner!
Some feedback we've come up with though is that maybe we'd like to see the logos encapsulated in some way to give it better bounds. I don't want to give you too much direction because I'd like to see what you can come up with but some options that we discussed were in a rectangle or even in some way that makes it more like an emblem.