I spent 8 years at Google (Cloud) and have lots of friends in the revolving door of AWS -> Google Cloud -> MSFT/Azure. I've been long convinced that MSFT has the best management and offers the most predictable corporate culture & behaviors. At least on the Azure side, comp is on par with both of the others, so if I had options for all three I'd definitely choose Microsoft.
Meta pays better but it's too long a drive from where I live to put up with the reduction in WLB.
MSFT you need to be Principal 1 to make what an L5 at Google makes, according to levels. Maybe the is lower for Principal Engineer at MSFT?
When I interviewed at Azure (hiring event where I talked to 3+ TLs) I was not impressed at all, which is quite a contrast to when I interviewed at GCP. Maybe I got unlucky!
Meta pays better but it's too long a drive from where I live to put up with the reduction in WLB.