I only write "youse" whilst posting online when I feel particularly comfortable with my fellow posters or we're discussing regionalisms.
As far as using Jiko, 'Ohana, and youse in a sentence I'd prolly (look at that-slang!) go for: "Youse want Jiko
's or 'Ohana
's?"

.
Still, I had a "combo" education (some schooling in the Caribbean and some in the USA) so my spelling sometimes confuses even me

.