I like both…
The dropper for me just makes things easier especially if your a serial post dropper like I was. I was always stopping and faffing with my post height because I hate riding fun stuff with my saddle up. Using my a Reverb had become second nature now and it’s been flawless for the best part of 18 months. I do take it off for uplift days though because I’m paranoid of killing the lever.
But lighter wheels do make the bike feel better to ride everywhere.
However wheels are easy to justify, a posh dropper post isn’t. If you drop your post a lot and have so e cash stashed away I’d get the dropper first.