DIVs all the way. It is the newest type of HTML out there -> XHTML

It requires the knowledge of CSS, but is substantially better.
-Quicker load times
-Easier to understand
-Tables weren't meant for layouts -> Meant for holding data
-Far less errors
-Neater code
And many other reasons.

Professional companies keep away from tables and stick to the newest and most efficient type of coding out there.

Hope this helps!
-Cushioned