oracle vs sybase

Does anyone know of any available comparisons between the pros and cons of Sybase and Oracle? I've looked at the faqs for both but there is no real compare/contrast data available.

I need ot convert a database from VAX DBMS to a multi-platform environment (Unix and Windows). The exising arrangement contains about 20 tables with the largest being in the neighborhood of 100 k records. There will be a DBA and up to 10 users who have read only access.

thanks in advance

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Wally Walter
San Diego, CA
walwal_at_marlin.nosc.mil