I own a VAMO. I am currently using the eGo-c tank setup... I am wanting to go to the DCT. some people say that the tank is good and others say that different ones are better, I was seeing what people's thoughts were about different tanks as opposed to the DCT.
Well, that helps a bit!
To me, tanks are tanks are tanks. DCT tanks all use cartos and so it's not so much the tank, but the cartos. Basically, you choose the tank you like to look at, whether glass or plastic, or one that fits the amount of liquid you want to carry, figure the cost you're willing to pay, and then you buy it. At the same time you read about which cartos are recommended and then buy some of those. Many people like Boge, but personally, I've never used them. I use Volcano tanks with their dual coil cartos, and for no particular reason... they just happened to come with my Inferno kit when I bought it. The carts are decent, but I have no idea how they compare to others. I rarely use my DCT's anymore though as I drip just about 100% of the time.
On the other hand, some of my juices actually taste better in a carto and so I still do have a few tanks loaded. The major drawback with these juices however is that they clog the cartos in a short period of time... depending on how much I vape them, of course. Short for me could mean two weeks. Some juices clog less, and some juices simply taste terrible in a carto. You wouldn't think a juice would taste terrible dependent on the delivery system, but it happens.
Another thing about tanks is that since the carto is sitting inside and the heating element is basically heating the juice, I've found that some of my juices don't like it. The heat changes the juice flavor over time. I tend to run only a few select juices in tanks since they might be sitting there for some time.
My recommendation is you try to obtain a decent tank, not too expensive, but decent, then buy a few cartos in dual coil, and single coil configuration. Try not to go too high on the ohm ratings, if you have a choice, so that your Vamo can handle the carts easily.
Sometimes what it takes is that you just have to try things out to see if you'll like them or not. You can read and read about people's experiences but in the end you just have to go for it. That's what I've always ended up doing... to my wallet's dismay!