I'm looking to potentially pick up a game that is on PS3/360, but notably not on PC. I've noticed that with a lot of PS3/360 games, all the top times are for 360. Is this truly a thing, or am I seeing patterns where there are none? (Something I'm occasionally good at!) Furthermore, I've swapped out the native hard drive on my PS3 and installed an SSD, does this change the arithmetic at all?

I already own the game for PS3, as you might be able to guess. It wouldn't be the first time I double-dipped, though, were I to do so. And down the line I'm heavily considering investing in an Xbox Series X (I've got a fair quantity of original Xbox discs I've never been able to play, along with a decent collection of 360 games as well). Does anyone have experience with Xbox 360 games on Xbox Series X? That would be interesting to know about as well.

I believe Microsoft took pride at the time for having the most powerful console out of its generation. I would assume 360 just handsdown is the faster system between the two.

Having a SSD in the PS3 can be a pretty big difference so long as the game actually stores stuff on the HDD, the PS3 does have quirks that prevent it from taking full advantage of an SSD, however it's still a significant upgrade from the very slow 2.5" HDD they usually have, at-least provided it's a decent SSD with onboard DRAM, no quirks if used in a system that can't TRIM and a decent chunk of free space.