Out of your list, I have only played at Ballyliffin, and I would prefer the Old course twice over Glashedy twice.
The Glashedy is hard, modern in its challenges, long, and beats you over the head a bit.
The Old is shorter, easier, quirkier, and has some of the bumpiest fairways you will ever see.
The two courses actually compliment each other quite nicely, but if (when) I was to return, my focus would be on the Old course at Ballyliffin.
I think the others above have mentioned the favorites that you could extend your trip to include. I would also recommend Rosapenna. The golf is wild, natural, and has a new 9 that was recently designed/refurbished by Renaissance Golf...