I have the x23, x32, and SDLv2. I originally didn't know about the x32, because it is discontinued, until reading this thread.
The x23 also has a very nice AFOV (65*). It also has full weather sealing to the scope, unlike the x32 (the x23 screws on the outside threads of the mount, whereas the x32 screws to the inside threads).
If I had known about the x32 (and was able to buy one), I would have gone x17, x32, and maybe the zoom. the 45x zoom is great for what it is, but the AFOV is only 36* at max zoom.
I guess if I were looking at flocks, I'd use the 23x or 15x from the zoom, but otherwise the 32x has been on the scope since I got it.
I got lucky on the 32x and found a retailer who had old stock here in the US. AFAIK, I got the last one. I've not seen anyone else advertising stock of it.