Steam Controller is of course an unbeatable classic, almost it's own category with the weird but charming touchpads.
Of the more conventional controllers I'm a big fan of my current Gulikit KK3 Max. I was looking for a controller with Hall-effect joysticks, and this one looked like one of quality, so I decided why not eh. Feels like a good controller when I use it, so I'm content with it.
Any gamepad without vibration feels lifeless to me. This was one of the first gamepads I bought for PC, the Thrustmaster Dual Analog 4. No vibration, L3/R3 require a lot of force to press, no analog movement on the triggers. I guess what you get is what you pay for but man I don't wanna go back to cheapo controllers...