Poll: McCosker's vs Carpentar's vs Royal flasher wrasse

[Fiver]

I can only add one more fish to my tank, and I want it to be a wrasse. I like the McCosker wrasse, but feel like a Carpentar's wouldn't be much different/a bad compromise. But I could possibly get a good deal on a rehomed royal wrasse.

All three wrasses SEEM to look very similar to each other based on photos and videos I've seen online. I've never seen any of these in person!

So why do you say: Would I be disappointed with a royal wrasse? Or, is it a close enough approximation that I wouldn't even notice?

Thanks!