Australia versus Canada

:)Hi there,
I am Libby and am presently working in Dubai.
I plan to migrate to either Canada or Australia.
I want to knw b/w the two countries , which License is easier to acheive..I mean which u can absolutely pass thru 1st attempt?N d job opportunities r better..
Like in Canada, ill b in Toronto, n if I go to Aus then I'll b in Melbourne.

Also if any one knows which country offers better benefits to senior citizens n how..Pls get back to me as soon as possible..My email id is [email protected].
This is an extremely big step for me..So some suggestions wud help!!

Thank you very much.