Whilst I accept what is being said, at the same time, this is a family resort, so your not really going to get away from the kids, regardless if this is in the theme park, waterpark, mini golf or hotels. As for a relax area, every time I have visited, Splash hotel bar has been dead and devoid of any atmosphere whatsoever.
However, I think Alton missed a trick with the Emperor Grill area by turning it in the overpriced Steak restaurant it is today. When I first visited AT before Splash was built, this room was opened up and they would hold disco's and events in there. It was a lovely sized room, not too big but adequate. Alton could have quite easily have made the lovely Dragon Bar (which has far too little seats now) into an 18+ area and opened the room occupied by the Emperor Grill into an extension of this.
Open the second bar which hides behind the wall by the ship every night and let families use this one. This bar is hardly ever open anymore, regardless if the queue in the Dragon bar is extending to the door or not which just seems crazy.
The Dragon Bar used to be a lovely relaxing place, plenty of seating, and a nice atmosphere in there, but that seems to have vanished since they opened it up more.
One thing I REALLY wish they would sort out however are the room allocations. The noise in the hotels from kids really is unbelievable at times, it sounds like the doors are constantly banging, kids jumping to the floor from the bunk beds, and elephants running up and down the corridors.
What I would love to see is Alton allocating adults only to either a section of the hotel, or start at the top floors and work down, so families have the lower floors, and kids are kept in the same area. I find it so annoying and my biggest annoyance of staying in the hotels is the noise from kids belonging to inconsiderate parents, early in the morning and late at night.