I didn't vote and don't have a preference, but it's an intersting thread.
Most English spelling started to standardize shortly after printing presses gained wider use, so that there is really very little variance between British and Americanized spellings by the besides those mentioned above.
Had European population of North America and US and Canadian separation from Britain occurred before the advent of the printing press it may have been a much different story.
The silent letters are mostly an artifact of actual pronuciation in the 16th and early 17th centuries, when spelling started to standardize.
English pronunications probably sounded more North country or Scots at that time. So Draught (Draft) beer would have been pronounced more like "dro'cht".
I seem to remember all of this from Linguistics classes long ago, but without citation don't believe me.
I'm American, but lived in London for two years in the early 80's, and was surprised at how much regional difference there was in accents around Britain. I was most surprised to hear that what we typically think of as "pirate" accent as made popular by Wallace Beery in the old movie version of "Treasure Island" was actually a common accent in Cornwall.