Ask HN: What do you use for Payroll?

I'm looking for something that can pay founders (LLC 'guaranteed payments'), contractors (1099), or employees on a monthly basis automatically.

(Note: Google Rankings and SEO and reviews are too easy to game, that's why i'm looking for direct feedback on payroll tools/services).

If it files all the necessary tax/legal paperwork for us that would be awesome.

I've heard of 'zen payroll' but not sure what else is good out there.