What camera do I buy? / general gear talk

So, I'm thinking about selling my Olympus MFT kit to be replaced by a single camera, something with good manual controls, able to cope with abuse and good zoom range. Ideally to match or exceed the image quality from the OM-D.

Any ideas?

The olympus kit is as follows:

1. Olympus OM-D EM-1 with grip, 2 batteries and remote
   
2. Pansonic 14mm F2.5
   
3. Pansonic Lecia 25mm F1.4
   
4. Olympus 45mm F1.8
   
5. Olympus 60mm Macro