To me Rafferty is a dog's name. There was a kid's programme several years ago on Irish television which featured an Old English Sheepdog called Rafferty.
My second association is with the blind wandering poet
Antoine Ó Raifteiri, which is not a bad association just rather sad.
I don't like
Raleigh. Maked me think of Sir
Walter Raleigh and motor rallies.
I do like Sigourney though I wouldn't use it. In the film Spellbound one the spellers has a sister Sigourney. And I like Sigourney Weaver.
Royce - don't like.
Rourke - I prefer
Ruarc - actually I like
Ruarc a lot.
You like R names don't you :)