Of the chips listed heres what I think:
St Jos are the best deal, and are great looking chips IF you put the time in cleaning them. Plus they have shaped inlays.
Let's be honest, if the cog inlay was a man, he would be king.
For me, it was easy. At night I would clean a rack while watching TV. Eventually they all got done. It wasn't a quick process, but with the price I paid, there is no better deal. Cleaned up and done, these chips rock.
Fresh out of the box though, I would say the Plaza's at $1/ea. These are used though, and you're still going to have to clean them (unless you like the grime on casino used chips....freak

)
I love the THC mold. I really DONT love the Paulson home mold, so there is no choice for me. Of the home chips, I would go with NPS's because of the different edge spots.