What celtic language has the strongest future?

I am a welsh speaker and it's my first and primary language and welsh is making a revolutionary come back even in the English speaking ares within wales. What about all the other Celtic languages what is the future of these. Which one is in the strongest position today?. And also why can't we post in welsh and Irish and Scottish Gaelic, Manx and Cornish on here as it is Yahoo Uk and Ireland?. Dwi ddim yn hapus gyda hyn pam na allaf gofyn cwestiwn yn fy mamiaith sydd yn iaith frodorol yn Nghymru ?