I have played with all four, although I really didn’t like the strings in either of the Yonex demos I had, so that makes it harder to compare.
Here is the way I rated them:
Power: DR98 > PS 17 = PS 97 > Blade
Control: Blade > PS 17 > PS 97 > DR98
Ease of Use: DR98 = PS 97 > PS 17 > Blade
Spin; DR98 > PS 17 = PS 97 > Blade
These four frames are similar in a lot of ways but with very distinct differences. Baseline bashers that hit flattish will like the Blade. If you can swing the Blade as fast as the others it does have a lot of power, but it takes a lot more effort to generate RHS with it. I ultimately gave up on it because I was having to work too hard on groundstrokes over my shoulders and was often late on reflex volleys and returns against really hard flat serves. Baseliners looking for power and spin with control will find it in the PS 17 (they may also find TE). The PS 97 was a Swiss Army knife kind of frame for me. It did everything really well but nothing exceptionally well. All court aggressive topspinners will enjoy the Yonex.
I do keep a record of numerical ratings in a bunch of categories of all the frames I use or demo (I know, nerdy, but I'm a former software engineer). I can give you the ratings I gave each frame in each of these categories (and others) if you want them but, remember, those numbers are subjectively based on my game (slightly aging 4.5 all-courter).