It's sort of like having a filet mignon opposed to a good t-bone or rib eye.the latter two steaks are still good but when compared to the filet, they fall short. The pool towers have large, ultra modern bathrooms, the casino tower has smaller bathrooms that are still nice. Here are the differences The pool tower rooms have microwave ovens and mini-fridges, the casino tower rooms do not. Point being if you are asked would you like the Casino tower, my suggestion is to opt for a room in the North or South Pool towers.
If you haven't stayed at either of the pool towers then you will love the Casino tower. For those of you who have not stayed at the Winstar World Casino Hotel original Casino tower, it is very nice although the two new towers Pool Towers North and South are far and above the original Casino tower.