For both options you would in theory qualify for FSW under Category 2, Arranged Employment.
http://www.cic.gc.ca/english/immigrate/skilled/apply-who-employment.aspOption 1 - you are not yet working in the job - unless you would be exempt under NAFTA, your employer would need to apply to HRSDC for an Arranged Employment Opinion (AEO) before you could apply for PR. You would not be able to start working until you obtained PR.
http://www.hrsdc.gc.ca/eng/workplaceskills/foreign_workers/forms/emp5275e.pdfOption 2 - you start work before you apply for PR - again, unless you are exempt, your employer would need to apply to HRSDC for a Labor Market Opinion (LMO) - you would not be able to apply for a Temporary Work Permit until your employer obtains a positive LMO.
http://www.hrsdc.gc.ca/eng/workplaceskills/foreign_workers/temp_assessment.shtmlHere's the catch - although you would be able to work in Canada FASTER under option 2, LMOs have been in short supply lately, because of the economic conditions and unemployment in Canada. For the LMO, the employer has to prove that they tried to recruit/hire a Canadian and could not find a qualified person to fill the job. Very tough these days. (Of course, your multinational may have some very good lawyers that are good at getting LMOs...)
Under option 1, the AEO does not require that the employer prove they were unable to hire a Canadian. (they just have to prove that they won't abuse you, under-pay you compared to a Canadian, etc.).
Among the various types of applications for PR, Arranged Employment applications are supposedly processed relatively quickly. So if you can afford to wait a year or so for the employer to get the AEO and to go through the PR application process, I think your odds are better.
If not, it will still take several months to process the LMO application for the TWP. Once you're here working on the TWP, you can apply right away for the PR (note that your TWP and permanent job offer in this case must still be valid at the time the visa is issued if your application is approved, so the sooner you apply, the better).
You should be sure that the terms of the "permanent" job offer meets the definition of "permanent, full time" - which means that it cannot be a fixed-term contract (e.g. a 2-year contract), it can't have an end-date, even if renewable. Also, it has to be a minimum of 37.5 hours per week, or it's not "full-time"...