As far as i know, only one public version of Themida was cracked, which is ancient.WinLicense is an amazing product, which does all what it says.
Until now, i've never seen a product cracked which is protected with WL.
It support SmartKeys (activation by key), also it's very very easy to develop a custom online activation scheme, using the SDK from WL.
If you intergrate WL "deeply" in your code and do your own "magic" as Crk said, then it will be very hard to crack your software..

Have a happy new year full of health and wealth!