For me, in X14 all the text (including dimension measurements) are slightly larger, and the border widths of the text are a little different as well, but the big issue is when using "Chief Arch save as PDF". It really messes with the font. I've had to change to another pdf printer to solve. You can see the differences attached. The x14 pdf, the letters & numbers are all crowded together, making it a little difficult to read, even covering up the room dimensions a little.
And what's strange is, it doesn't look like this in the plan or layout views, only after using the X14 Chief save as PDF option.
What I've always liked about the Chief pdf printer is the file size is smaller than other pdf printers I've used.