SacredKnight:
1)POTJ B-Wing: I have a few a couple of the POTJ B-wings and I do have say it looks better aesthetically, at least. IMO the slightly darker blue on the POTJ one make it look much, much MUCH better.
The weathering on the POTJ version looks much more realistic IMO as well. The scraping, wear & tear, scarring, etc on the POTJ ship carry over seamlessly onto the whole of the ship, most specifically onto the circle red markings. All of this adds up to a much better looking ship.
2)TVC B-Wing: This ship does have really nice upgrades. First thing being are the black "burn marks" on the engine, in front and on the back where those 4 muffler looking this are. That alone wouldn't entice me towards the VC mold. However, the one (and IMO)best upgrade is the inside of the cockpit----the inside is all new, as far as I can tell, and its actually done up extremely well.
So my opinion is this: If you are looking for a ship for hanging or some suspended mode. I personally would go with the POTJ, However, if you are going to have it in "park mode" w/the cockpit open, I'd go with the VC version.
And also, almost forgot----if you're one that keeps his items in their boxes, the POTJ version is the easy choice. It getting more & more difficult that we get clear/see through boxes, then it's a no brainer.
Hope this helps.