Can't go wrong with an L or W.
I personally prefer the L for a couple reasons.
1: I don't mess with dual coils yet, so I don't need that extra post taking up valuable space where juice could be sitting, and making it harder to find a place for the end of my wick to lay
And
2: I like the look and finish of the L better.
It also seems a hair lighter in weight too.
Cons for the L are that it is a bit harder to wrap the ends of the coils around the screws, whereas the W has those nice little holes to put the ends through.
But, after wrapping a few coils I got used to how to wrap the ends pretty easily.
I have a micro set of needle nose pliers that help that process along.
If u plan on doing dual coils in the future, get the W.
If not, get the L.