I do like it, but only for fun because it's really close to my last name. It's such a gallant, regal name. I also like the association to Song of
Roland-- definitely a positive. And of course it's usable... why wouldn't it be? It's a perfectly normal, not unheard of or unseen name.
My only combo with it is
Roland Carolus, which I adore.
Of your combos, I like pretty much all the top ones. They all sort of stick with the image I get from it. Of the bottom list, I
LOVE Alasdair Roland. It's perfect! The rest are fine enough, too.