notation rule question

[Karol Majewski]

Hi,

I have question that is not related directly to lilypond. It refers to notation 
rules. How to divide a long note that starts at first half-beat in 4/4:

r8 c8 ~ c2.

or

r8 c4. ~ c2

?

If both are OK, then which one do you prefer? I couldn't find such rhythm in 
hand engraved scores. Perhaps I should look at music written in 19th century 
and later, but I simply have no time.

Karol