The tank question is going to end up on how well you like the vape from your 2 choices. I like protanks, but that is my preference.
As to the Spinner verses Vamo issue. Well, the spinner is a "throw-away". You use it until you either break it, or the battery dies out completely.
On a Vamo, or SVD or other similar device, you replace the batteries as needed and still have the device. Of course you can still break the darned things, but they are not as fragile as the ego styles and should last you a much longer spell. Of course, it's going to cost more for the Vamo.. extra batteries and charger are going to be needed also. The Vamo option is also much larger, bit more bulky.
So.. yea, my normal spiel.. up to you depending on what you like.