Yes, there is. A 265/70/18 is the stock size tire (except for the PRO4x, which is 275/70/18) and they are about 32.60" tall and 10.43" wide. A 285/65/18 is about 32.58" tall by 11.22" wide, so it is basically a wider version of the stock size. The 275/70/18 is about 33.15" tall and 10.82" wide, so its roughly a half inch taller than a 285/65/18, but a little skinnier.
It all depends on what you are looking for. If you want a wider tire and you are okay with the stock height, the 285/65/18 would be fine. If you want a little taller and a little wider than stock, then the 275/70/18 will work. I'm currently running 275/70/18's on my leveled Titan and they look pretty good.