I use the BCF2000 from Behringer. Works great and always has using XP, Windows 8, and Windows 10.

I'm probably a bit of an unusual case here, I think.  I use a combination of the Mackie d8b 24 channel mixing console and a software that converts between MCU midi protocol and the native serial comms for the d8b console (Blu Audio's D8Bridge x32 v1.1) such that the console effectively becomes a Mackie MCU plus 2 XTs for a total of 24 contiguous tracks of control at a time.  I'm not using the console for audio at all, just as a controller.  The arrangement provides 24 channels of meters, faders, pan, mute, solo, select, record enable, etc. plus transport control, jog/shuttle, etc.  I'm still on Windows 7 Pro SP1 x64 basically because everything works as it should and I'm not feeling compelled to upgrade the OS anytime soon.  I also use the Frontier Tranzport and a wireless keyboard so there are lots of ways for me to control the DAW from up close or from across the room.

drummaman
Behringer X-Touch - look around for the Cakewalk/Sonar overlay. It all works very well.

Had to ditch my beloved Frontier Tranzport due to old drivers crashing Win10 Pro x64.

Have yet to find an iPad app thats designed for Sonar and not originally made for ProTools or Cubase...

I'm using my Frontier Tranzport in Win 10 Pro and works perfectly.  Installed the drivers in a Vista (could also be Win 7) compatibility mode.  

M-AUDIO PROJECTMIX. 
works perfectly with windows 10

X-Touch and Console 1 mkII working great here.

Not a controller - but I do like my touch screen. 
 
I have a really sweet little controller from another company, but I have to use the other companies DAW.  I can see where a controller is a good investment.  
 

FaderPort + AZ

MCU-PRO and TouchOSC for my iPhone are the primary controllers.  With AZController I can also use my Yamaha Motif 6 classic, but right now I have no need to have that hooked up.  There are lots of options.

4 bcf2000s (mackie emu) + 4bcr2000s (home grown dll)

Novation impulse 61.  The keyboard just feels right to me.