My Verizon LG G2 came with a white/grey Incipio DualPro case. My initial feeling toward it is that the silicone is too flexible and pulls too easily away from the top and bottom front faces of the phone. While putting the outer shell on the phone, it felt like the case just wouldn't be stiff enough, but now that it's on the shell isn't so bad. The case has decent grip, but the white color of the outer shell picks up color from your pocket (or whatever else it rubs up against for a bit). I really like how the rear buttons are covered up, yet actually easier to use because of the more pronounced power button bulge.
On my previous phone (a Verizon Samsung Galaxy SIII) I regularly used a pebble blue TPU case from Belkin, but also had a blue Otterbox Commuter for when I'd go camping and hiking. I quite liked the Commuter and will compare the Incipio DualPro against it.
I've been using a Diztronic matte black TPU case for the last week (my first full week with the device). Now I've switched over to the Incipio to check it out. I'll give it as long as I can stand it and will post back here.