As a new-hire you will most likely get EMJ FO in YYZ,YVR or YUL.
Quite a few new-hires will go RP 777 in YVR and YYZ as well as B767 RP in YYZ.
How long to get to YVR?Again a few new-hires go straight there on the EMJ or RP.
Quality of life...again depends what you bid for.Some new hires bid left seat EMJ after 6 months and are junior reserve.(but get much more money.)Some guys prefer seniority and are senior blockholders on the EMJ after a year working mostly turns and home most nights.
Depends what you want but most guys are very happy because they have lots of options on what to do once in the airline.