I'd want number 5 cos I always played at right-half back in the Gaelic. Otherwise I would want a number to reflect my position on the field.
It'd ideally go by position, which would probably make me a 2 (right full-back) or 4/6 (two-way mid, leaning defensively). Otherwise, I wore 16 all through my basketball career so it'd be the obivous choice.
Or Cascarino's Irishness percentage! Only kiddin Tony! Fair play to you gettin' so many caps for liking The Pogues, having once had a pint of Guinness and owning a Wolf Hound!!!!
Make a Keano pizza? Meaty [challenges], lots of chillies [fiery] and served by a wench in a basque [unforgetable!].
Wow, this far without some genius chiming in with 32? Personally... 1, I guess since I played in goals a lot in my younger years (got trials for Pat's but had school to go to ), and still enjoy being in goals on the astro-turf 2-3 times a week. I'm pretty good there - and plus, I am utter shite on the ball.
6 = 1 + 2 + 3, 28 = 1 + 2 + 4 + 7 + 14, and 496 = 1 + 2 + 4 + 8 + 16 + 31 + 62 + 124 + 248. http://en.wikipedia.org/wiki/Perfect_number