I find I prefer spell slots, but mainly because that's what I'm used to with D&D (been playing since 1e). The management element, to me, is merely a 'poe-tay-toe' vs 'poe-tah-toe' factor. That's just me of course. I honestly find spell points a little more work to manage (still fairly simple, but requires more memory to work out how to spend the points if wanting to increase the casting level, vs just sticking the spell into a higher level slot). Again, just me and my preference, not some magnificent, inarguable fact.
