I have the Olfa (all sizes and 2-4 of some sizes) auto retractable blade)
also have the True Cut Ergo (bent handle), and another brand (that I don't
like).
I really like the Olfa's and True Cut cutters.
As for cutting mats I have about 4-6 different brands, but have discovered
that my newest cutting mat which I got on Amazon is my favorite so far.