My guess is it would be waterview room...but I'm not positive. We had booked a standard room but b/c of my birthday they gave us this room. Not exactly sure what it's considered.
Anyway, you know when you go into the Tower and the single hall of rooms split off to two halls, forming a "Y?" Right when the hall splits, it's the first room in the Right Hall, on the left. I didn't take a good look at the room next to it (let's just say it IS 1742), but I'm sure the view would be quite similar. However, because the hall had split just before the room 1740, the other room (um...not the 1742) wouldn't have the same view. I'm not certain, but 1738 would probably be down the single hall, making the view completely different.
I'll have to get back to you on that, though.