Of the 2 I'd personally go for Sebastian but it all comes down to =
perosnal choice and how it fits with your surname and / or middle names =
you may have choosen.


Meanings of names -=20

Sylvester -=20

This boy's name is used in German and English. Its source is a Latin =
expression meaning "Wooded."=20
Nicknames of the name Sylvester include: Sly, Syl. Alternate spellings =
of the name Sylvester include: Silvester. There are three other forms of =
Sylvester. There are also teasing nicknames (see Drawbacks).=20
The name did not rank among the top 1000 names in popularity for males =
of all ages in a sample of 2000-2003 Social Security Administration =
statistics but did rank 396th in popularity for males of all ages in a =
sample of the 1990 US Census.=20

Sebastian -=20

This boy's name is used in English, Norwegian, Swedish and Danish. Its =
source is Sebastos, a Greek name meaning "Revered." Learn more about the =
heritage of this name.=20
Nicknames of the name Sebastian include: Seb, Bas. Alternate spellings =
of the name Sebastian include: Sabastian. There are eight other forms of =
Sebastian. There are also teasing nicknames (see Drawbacks).=20
The name Sebastian ranked 80th in popularity for males of all ages in a =
sample of 2000-2003 Social Security Administration statistics and 677th =
in popularity for males of all ages in a sample of the 1990 US Census.=20