My favorite tank is the Mutation X MT, but the wicking is very finicky and if not done right will leak out of the air holes. When done right, incredible flavor and massive vapor! I've got dual parallel 26g, 6/7 wrap, 2.5mm coils, but it's hard to go above 70 or 80W as it's too hot a vape. I have the Ohmega Alpha coming. It has a velocity style deck and is supposed to be a flavor monster and hopefully not the leaking issues. I have also the Kanger Subtank mini, which I've never had a leak out of, but the juice channels are too small and can't keep up with too high a wattage or chain vaping. All these come with RBA decks and that's all I use.