These days I’m mostly playing rhythm games and for those I much prefer the trackpads. Less finger strain, I can tap faster, less wear and tear for the buttons, less noise for my surroundings. And in other games with toolbars, even if they have console support, you usually have to sift through shoulder buttons to switch between your items. With the trackpads you can have a tiny macro pad right underneath your thumbs.
As someone with tiny hands who usually uses an extra small xbox controller, I still find myself loving the deck controls more, simply because there is more stuff to configure to my liking. Yes, I have some trouble reaching the shoulder buttons when my thumbs are on the pads, but so far that’s been less of a problem in the games I play.