What should be my filing status if I make 450K in CA?

[eastbay777]

I make 450K/year. Base is $205K and the rest is company RSUs. Wife does not work. I understand that my filing status should be "Married filing jointly" but a friend suggested that in the W4 form I should mention "Married filing separately" as my income is high and I would save more money. I'm confused because status on W4 and when I actually file the return will not match. So what should be the status I should reflect in W4?  Married filing separately or Married filing jointly? Please advise. 

[Critter-3]

File jointly ... since the spouse doesn't work doing otherwise would cost you more in taxes. 

[TomD8]

The filing status on your tax return does not have to match the filing status you enter on your W4.