I prefer the 217. You cannot beat that MM dial, it is amazing. I am of course a bit biased having one, but I considered your same options and chose the 217.
The overall look is quite similar both with a brushed case and polished bezel, but the 368 is titanium and an 8 day. The latter may be an advantage over the 217's 56 hour power reserve. I wear mine almost everyday and it would be nice to wind it once a week, but I wouldn't trade my 217 for a longer power reserve.
See which one you love and that will be the best choice. Good luck and I hope you enjoy owning one of the two spectacular watches very soon!
Here is a fresh shot of my 217 on a Gunny Caitlan: