We had the same decision – 2011 14RB vs. 2010 16BH and went with the 16BH. Our main reasons – DBF is 6'6″ (yes, he has to duck to stand up in the TT) and having the second bed with the bunks was a big help – that way we don't have to do the crawl over one another to get to the bathroom in the middle of the night. Also the extra 2 feet gave us a pantry closet (at least that's what we are using it for since it's next to the kitchen.
Granted we lost open floor space and with 2 big dogs, that's a factor as well. But as the only time we are all in the trailer is usually for sleeping – it works out.
We did take out the top bunk, so we can use the lower bunk as a sitting area as well.
We've only used the shower one time (used the park facilities the other time we've been out) so I'm no expert on how the shower area is going to stand up over time. I do have a squeegy for use after the shower. I was interested in the mod thread where the shower walls were added, but we haven't made any effort to attempt that mod yet.