Mamiya c330 or mamiya rb67?

Question

Unsure which one to go for, mainly doing landscapes and portraits 

Answer 1

......................

Answer 2

Those are both great cameras.  the 330 is heavy and hard to pack around.

The 67 is more versatile.  I believe you can even use it as a 645 with an adapter or something.  Preference plays a role, and I like the SLR over the twin lens too.  That said, in a studio, that 330 is a workhorse of pretty high quality.