I have a Gen 3, 3 Gen 4s, and 2 Gen 5s, and I find them nearly identical, though I like the finish on the 5s and the curvy corners. Trigger wise, they're almost indistinguishable. My favorite is probably my Gen 4 17 but that's just because it is the one with the most rounds, most likely.
Maybe starting the first decade-ish of my shooting career on DA/SA hammer guns just made all striker guns feel pretty dang close.