My first question would be what type of candle are you trying to make, pillars/votive, containers, wax melts? You have mentioned waxes that have different purposes.
The Ecosoya PB is designed for pillars and votive candles and has a higher melt-point than container wax. I think it is also designed to pull away from the mold slightly to help in releasing. I use some of this in my wax melt blend. However, there are some that also use this as a container wax.
The CB Advanced is a container wax and has a lower melt-point than the PB. It was designed to be a one-pour wax and to minimize the frosting and mashed potato tops you sometimes get with soy. Although you can get a pretty candle fairly easily, I found it difficult to get a good HT. But, could have been the wicks I was using at the time. I'm not familiar with CB-135. I don't thinks it's the same as the CB Xcel (sold elsewhere) which I haven't tried either.
I know a lot of Chandlers on Craftserver have had excellent results with the C3. It's not as easy to use as the Ecosoya but does produce a beautiful container candle. There is a specific Vegetable Wax section on Craftserver that you can search. There is a lot of information on the different waxes and some very knowledgeable people. Everyone has their favorite wax. And, what works for one person may not work for another using the exact same wax/wick/fo combo. It does require a lot of testing. I ended up using GB464, that worked best for me.
Are you in the states? Can you use other vendors? Candle Science has good prices on wax. And, they carry the Ecosoya and Golden Foods. Don't remember if they ship to Canada/International. There is also The Candlemakers Store. They offer waxes in one pound bags so you can test before buying a 10lb bag. They do ship to Canada/Internationally.
Good luck and have fun with your testing! - J
eta: Forgot to mention, you can use a pillar wax as a container wax but I would not recommend using a container wax for pillars or votives. The wax is just too soft and I think would have blow-outs.