I remember reading somewhere years ago that George W took the most vacation days during his first 100 days in the history of the presidency. I'm not verifying that, but here is the total figure for his 8 years: 487 days at Camp David.
According to Washington post Dan Froomkin, he spent over 879 days (or partial days) at Camp David or at his ranch. I'm sure he worked from those locations, at least part of the time.
Anyway, Here's a link comparing bush's first 100 days to Obama's