Hi all, we have our first ever Club World trip from MAN to YVR (via LHR) in Jul (which according to my wife I'm far too excited about

). Allowing some time for transferring from the Domestic flight and the inevitable look round the shops, we should have around 1.5 hours to relax in a T5 lounge. Could anyone tell me which one would be better for a mid morning breakfast and maybe a cheeky glass of something fizzy?
Also does anyone know which part of T5 the YVR flights usually leave from?
Thanks :-)