In my experience, I think not using all your defensive cooldowns at once is important when fighting elites. For example, not popping BoH, Serenity, and Blinding Flash all at once. Instead, I try to use one and do some damage, then another and a bit more damage, etc. and kite until they come off CD.
My build is pretty similar to yours - FoT instead of CW, no ally, and no longer use BoH since it is kind of paltry when you have ~35k health pool. IMO FoT interrupt stops more damage than the debuffs CW applies, in addition to being much faster. With Thunderclap, you won't have trouble catching casters, plus while it won't break jailer, if another target is close enough it will still teleport to them, which can be enough to get you out of desecrate, poison, etc. I also really like SSS with Sudden Assault. It's great for mobility and a bit of damage. Finally, Sweeping Wind/Bladestorm is pretty glorious - easily the most damage/spirit ability we have - providing constant, high damage to everything around you. The trick is recognizing how to keep it from falling off when you have to kite (FoT/Thunderclap helps a lot with this).