I do not like using the Control key with my bindings. The usual default for a lot of games with action bars is to have the first row bound to the number keys and the second bound to Control plus a number key, but I always rebind that second row to Shift, because it just flows more naturally for me. There’s no crucial reason for it, it’s just what feels comfortable to me and what enables me to hit my bindings faster.
And I know I’m not alone. Maybe in that particular binding preference I am, but I know friends who bind jumping to the J key, or who use a controller for regular play in Final Fantasy XIV despite being on a computer, or who have a bizarre set of action bar bindings like Y, U, I, O, P, [, H, J, K, L, ;, ‘. (I apologize for how weird those bindings look just typed out like that; imagine my face trying to picture it.) The point is that a lot of us have weird keybinding idiosyncracies. So what are yours?