Wow, 3 posts asking the same question?? A bit impatient? Maybe try reading the stickies, or the tons of other posts about builds here. You'll find that it's pretty much up to you and all 3 trees can be just as effective, the playstyle is just totally different for each. So it really all depends on how you want to play your lock. There are so many different ways to play a lock, so read the stickie on playstlyes and pick one. The sticky even gives you advice on what talents you need for each playstyle, so you can come up with your own build. Do that, then post the build, then maybe people will be more likely to give you advice on how to optimize it rather than smart a$$ comments like the other guy put in all 3 of your posts.
A little advice about the game and life in general. Do some of the work yourself, instead of expecting others to just hand you the answers. It will get you much much further.