Who provides best payroll service to small business? (5 to 8 employee)
Should I go with ADP or Intuit ?

With 5 to 8 employees, why not a one dollar pad of paper where you
keep the records the old fassion way? Why risk loosing tomarrow's
payroll data and information you may need at tax time to a computer
crash? I don't think the computer saves you any time on the average
until you get to a payroll of about 100 employees.  Neil

I've used ADP for years for several of my small businesses and have
always been very happy with their work.  For the longest time, I did
the payroll myself, including all the tax filing, year end, etc...  I
was hesitant to go to a payroll service initially, but now that I
have, I will never go back.  I have used them for businesses that are
already fully operational (50+ employees) and start-ups businesses
(starting with only 1 employee).  All of my businesses are now using
them without a hitch.  I can't speak about Intuit (I'm sure they do
fine work).