One thing to be aware of is that greater padding does not necessarily equal greater comfort. You can end up gripping harder because you feel less secure, and end up no better off. So, whatever you end up with, consciously relaxing your grip on the bars may help quite a bit.

In your case (I perused your other thread), doing everything you can to lighten the weight you put on your hands, as well as the other steps to reduce vibration, may be worth the effort. Ideally, you should be able to lift your hands off the bars while pedalling without falling forward, and you shouldn't have to push off them, either.

One other thing about padding - I use unpadded gloves now but I went through a bunch of padded gloves in the past and what I found was that SOME of them exacerbated the Carpal Tunnel problems I had from years of pipetting. In fact, one of the worst pairs supposedly had a channel to alleviate the pressure on the median nerve! Good luck!