As mentioned before, any lock can be defeated, and they all take tools to do it.

Here's the point. A thief cannot practically carry a tool box around that includes all the tools needed to do this stuff. For U locks then need either power grinders or bottle jacks. For cables then need bolt cutters. For pinheads they would either vice grips or the wrench you describe. That's a lot of stuff to try and carry covertly. In practice, they can pretty much carry one set of tools for one type of locking system and then troll around looking for a bike they want with that system. If you lock your bike with more than one system, it takes more time, more fooling around and more tools. The thief looks for an easier mark instead.

The pitlocks look to me to be more secure than the pinheads but they are more than twice the price. Either one work well for what they do but if you want max security, go for the pitlocks.

I mean depends on what the value of the bike you are locking is. If the bike is valued at $300, and you have $90 in a pitlock set, $60 into a top U-lock and cable - you've added 50% to the cost of your bike just in the locks. At some point, compromise is appropriate.

J.