Gotta agree with mred - there is no technical difference between the two. They will both last you a lifetime, have great support, and are fun to use. The 'specs' for each are identical, not enough difference to make a tangible difference. Our personal decisions have nothing to do with your personal decision. That said, I liked the fit and finish on the 2305 a little better than the BX - but not enough to make purchase decision. Since the prices were equal, my decision came to my wife's preference for a green machine next to her green sided house. (They are not the same shade of green, though...)
Not too much technical about that!