Which one is better.......

Better Bang for the Buck: Strut Tower Brace
Less Trade offs: Kmember Brace

You will reduce the flex in the strut towers a lot when you get a good brace up there. The kmember brace will reduce flex in the kmember but i believe that there are some other items that should be done with the kmember bracing to make it truely effective. If you are going to tinker with the motor then i believe that you will more than likely need to remove your tower brace - which is why i believe it has the trade off.
Walz

IMO all the Strut tower brace does is get in the way.
If you gave me one for free, i still wouldn't use it.

I disagree. It gets in the way yes, but its one of those things that you can feel the difference when you put it on. Atleast I did.