Hamish Imlach used to sing "Sonny's Dream". Whether or not he "made a mess of it" is a personal opinion to which you're perfectly entitled, but others may disagree.
Yes to "Arthur McBride" by Paul Brady - but I always thought "I Am A Youth That's Inclined To Ramble" - on the same LP - was even better.
Reminded of one other - "Shamrock Shore", which Paul Brady sang unaccompanied on the mainly instrumental album where he accompanied Matt Molloy and Tommy Peoples. A fine song , very well sung.
A couple of humourous songs also come to mind :
"Paddy And The Ass" - by a singer who I think deserves to be better known, Donal Maguire.
"The Beauty Spot Glenlee / Glenleigh [ ? ]" - sung by Sean Cannon, or the late, much-missed Seamus Creagh [ RIP ].