IF you had a mac it would be an easy choice because WM is not on osx.
lol. Anyway, that's why I don't have WM. But I have GC2, which I hate. But I thought WC looked pretty good. Still, I hate GC2 so much I still have not bought WC.
And I know that what I said is of no help whatsoever... But
The truth is in this case, you can have both. Just save a little more cash. They both do things the other cant, but with TG you can probably make them work together very well.
I have found, sadly, that to do 3D
on your own terms, you have to have multiple programs for everything. But you are just talking about a niche... this is relatively cheap.
It really sucks when you are talking about full 3D soft like Maya, max, Houdini, Modo. Then there are the sculptors like Mud and Z and others. I have found that I need at least 2 no mater what.
Just be glad that you are interested in terrain and spend the money. At least you wont be in debt... should not be... And then you can kick ass twice as much. Or not, but at least you will still be able to pay your rent
Anyway, these kinds of threads are useless. There are hundreds maybe thousands just like it on the net, and they are always wrong... Because they are always a trick question. There is NO better choice.
I say all this as someone who has gone through it just like most everyone else. The real question is, How much can you spend? And the answer is, as much as you have you will end up spending. So just pick the one with the prettier logo. And then buy the other one too.
And yes, I am trying to be humors. But I am also completely serious. 3D is just expensive.
Just my opinion