First and third are great. BUT...it's not about what I think
If you're shooting for the Irish Chain, then others have had very valid points.
As a Nine-Patch, either of 1 & 3 are very nice (again, IMO)
If you are really liking one in particular of these three, perhaps the IC is not the pattern you should shoot for with these fabrics. It's very easy with these blocks you're using to take a different road at this stage of the game. If you don't like ANY of them, you're not so far in that you have to be pained with finishing something you don't like.
Perhaps research more images of nine patches (any variation...I'm betting that a DP9 would look fantastic with your current fabric choices), and also check other Irish Chains to see what you really are drawn to, and go from there.