I do not have experience with both, only the buckle version. Beside the price, my choice was based on that when I have the watch on a rubber strap, it will be used as a tool watch/beater. Meaning everything from playing with my kid, working on my bike, whatever water activity etc. And even though I have never accidentally opened an clasp/deployant (knock on wood etc!) I feel that a regular buckle is safer…
Call me crazy
🤪 But that also saved me a couple of bucks, which I put towards a leather strap with a deployant for my speedy (still waiting though)