If you have the time, test drive some. We can all offer advice, but we don't know your expectations. You're in LA, there are plenty of members down there with a variety of engine displacements. I've owned my 1915cc for a number of years now, and never once wanted additional power, as mine is perfect for my needs and expectations. I know people w/ 1600cc engines that feel the same.
Long story over,.....test drive a few before you commit.