In IntelliJ, when you are selecting text from a PascalCasedWord and you place your cursor, say, at the end of the word. When you do an Ctrl-Sh-Left arrow it selects the word up to the next capital letter. In WebStorm if selects the entire word. I would prefer the IJ version or at least to have a setting to allow this behaviour.
Seems small but it is something i use all day long