I like the first concept most, followed by the third. What I’d change about the first concept: Make the white separation line thinner. It’s - for my eyes - too big.
And maybe you can make the third one with the inside of the p half green half blue (just like the first concept except without the white separation line. Maybe even flip the white and blue half-circles? So that you got the blue on the upper half and the green one on the lower. That will probably create some more tension in the logos since they are pretty tension-less the way the are right now.
