Al'kabor owns flat out because of the reuse. It makes a noticeable difference that I can't stand to give up for anything else atm. (and the reduced resist makes me feel better inside when its proc'ing

)
Trixy IMO is a million times more amazing for a wizard than a warlock. The deaggro is always up, which never can hurt in all scenarios. The cast speed is only half the shining bonus of that effect. Al'kabor's proc wont increase manaburn cast time while trixy cane drops it from 5+ to 3.6 seconds. Not to mention when you hit rock bottom power, the 50% power reduction is amazing, as is the constant group power restore that is proc'ing, which half the time manaburn itself procs my power regen from it hehe. And that cane makes getting power back up to full with constant chain pulling in under 4 min a lot easier.
thats just my 2c on where I see the Cane shine, not sure that a warlock would have any desire for its amazing power management while for a wizard it makes manaburn feel like another casually cast spell in my chain that takes little effort to support like it used to. And I just like to never run out of cast speed!