I can only speak to the Phat Bob. I have production (AUS8) and limited edition (D2, in my pocket as I type) models and have used them extensively. Random thoughts to follow:
* I have many KA-BAR knives, most of which I would classify as indestructible. I wouldn't call the PB indestructible, for one reason: it has a hollow grind, which I believe is non-ideal when it comes to blade and edge strength. Everything else is rock solid, and in fact quite heavy and beefy.
* The hollow grind makes this thing slightly terrifying in its sliciness. If you are thinking about cutting things with your knife, this is an excellent feature.
* I think micarta is an excellent, sturdy, and very durable handle material especially considering that it's backed up by the PB's thick steel liners. The production PB has smooth micarta: I've suggested to KA-BAR that the satin finish on the LE one is actually a much better choice due to improved grippiness. Polished micarta is not going to be as grippy as the Voyager's textured plastic.
* Flicking the PB blade open makes that liner lock click into place like the thundering of an angry Zeus, and I have no concerns about it failing. But my understanding that the tri-ad lock on the Voyager is generally considered the best in the business.
* As far as looks, that's entirely subjective. I love the PB profile and consider the Voyager an aesthetic mess.
* Both companies have an excellent reputation, and I own and love folders from both companies. I tend to mostly buy KA-BAR knives though.
It sounds like you need a beater, and as to me at least Dozier designed the PB to be more of a hunting knife you're probably going to want to go with the Voyager.
