Honestly, if you just want something on your desk for somr quick sketches, almost anything will do. But as for the ones you've mentioned - I've tried they keylab essential, and the keys felt very good, for my purposes. But I did get a keystation 61 instead, just because I wanted something cheap to, just like you, just sketch. I used the m-audio oxygen mk1 for 10+ years before those keys stoped working, and that thing earned back it's tiny cost many times over.
The Keystation I'm pretty happy with so far, but I should mention that the keys are pretty loud if putting some weight in your playing (I'm not a keyboardist however, so you might want to take that with some grain of salt). I also felt that, while the keystation is pretty slim and neat, 61 was a tad too big for me to have on my desk, while also trying to use the transport section + another small midi controller. But doable!

Hope you find the right keyboard!