I would also say that the Rome Flag is the perfect board for your described riding style. You could also look at the K2 Zeppelin Wide (an awesome freeride board, pretty stiff, don't know how pipe-worthy it is), or the K2 Podium Wide (sort of the Zeppelin's little brother, also a stiff board but might be better in the pipe). Look on Rome's website though, the Flag fits you almost perfectly.
163 seems like it would be like a go fast only board, i would look for a 160 prob..
At 210, I don't think a 163 would be a bad choice for you at all, especially if you do mostly freeriding. I pretty much only freeride, and I ride a 162, but I only weigh 195.