Hmmmmm - I have been known to do squares and contra, arguably more of them at Sidmouth (& IVFDF).
As a Barn Dance tart - I am pretty open about styles. I am sure I will be there. Is NuCeilidh another word for Zesty Contra?
I still advocate Horses' Brawle, not a bit challenging IMNSHO, but very inclusive of single people and not too number dependant. And I like the tune.
About the only genre I find challenging is the Eurobash, not because I can't dance Mazurkas (eg) but because the lack of guidance means most people around you are doing different things at different speeds needing different safety margins. I can foresee collisions when everyone is Polkaing (usually).

Well at least we can discuss NuCeilidh unfettered on this forum. (Almost).