I have all three and I use the 70-200 II more than the other two combined. But, it really comes down to what you like to or need to shoot. If you shoot sports in low light or if you shoot a lot of macro, the 135L and 100L may be better choices. The 135L is great for portraits. The 100 L is a macro lens - if you need a macro lens that's what you need, plus it does very well for portraits.

The 70-200 II is a general-purpose tele-zoom. The other two lenses are more specialist lenses. I think you need to decide which is more important for the types of photography you do.