I've got a couple of Tugboat V2's and one Tugboat V1. I've also got 2 Plumes. I will say without a doubt the Tugboat V2 is the better atomizer. Deeper well = more juice = less dripping. A smother hit, and wide open its quite the cloud producer. Close off the airflow a bit and you've got a nice flavor chaser.
All of that said, my current favorite RDA is the Mutation X V2. I love the deep well (thought not as deep as the Tugboat), 4 post design for super easy building, a NICE drip tip included, and it'll chuck clouds or deliver great flavor depending how you adjust the airflow. And, to top it all off, it's only $30 for an authentic atty. Can't go wrong!