Yeah it's pretty subjective. Topre is pretty much the highest quality rubber dome there is. With MX the highest quality is a tuned, lubed, and stickered switch. Personally i find both to be about equally enjoyable, but with most people it seems to be one way or the other. And just because Topre is a rubber dome doesn't mean it's bad, because most rubber domes are cheap and quite terrible. But then again there are some crappy mech switches too that no one has ever heard of.