Jtad,
I too am not a fan of tile or carpet in an RV. Tile is very heavy and do to the perpetual motion of driving, is susceptible too cracking. Chipping is another problem that warrants concern; even high end porcelain chips. And yes I've dropped objects on my tile and chipped it.
Carpet, well not many positives there so I'll leave it alone.
I like glued down engineered wood. I would also glue in-between the joints to make it highly water-resistant. I installed this in my home and a couple years later had a pipe break and flood the floor. We though for sure the floor was ruined. Fast forward 4 years and still the floor looks beautiful with ZERO water damage. I attribute this to the fact that the wood was engineered and I glued both the wood to the floor and the joints.
Since you have an RV and are going over a wood substrate I would first install a water barrier and install over that.
Good luck!