Chatter online has many players favoring Rule the Waves 3 over Ultimate Admiral: Dreadnoughts. UA has been taking a pummeling in Steam reviews lately as patching and updating, according to some, have wrecked the game.
Visually, UA is beautiful, but reports on the AI and the campaign mode are negative currently.
All of which makes me sad as I was a Day 1 backer of the UA game. That said, I am delighted to have an alternative to go to.