Well my ratios are:

1 : 1.12 : 1.51 (B : S : D)

No where near "ideal" as you put it but for some reason I seem to make gains more consistently with my upper body... which is odd but it's the way it is for me.

If I were you I would just train hard and take any gains you can make. If you're worried about being too big then eat at your mainteance level and train with low volume/high intensity. This will mostly focus your gains into strength gains and less size gains.

IW