Rides that reach over 1000 riders per hour
Thorpe Park
Colossus
Inferno
Stealth
Saw
Swarm
Loggers
Rumba
Tidal Wave (on a good day)
Plus Fish and X probably get close on a good day
Chessington
Falls
Tomb Blaster (on 5 trains which is rare these days)
Vampire (when it used to run but only uses 2 now)
Buccaneer (in its hey day)
After this only Scorpion gets any where near
To think Thorpe's lowest throughput ride Depth Charge gets around 350 an hour (probably less) when many of Chessie's rides get less than that (truckers, toadies, jumbos, jungle bus, rattlesnake and peeking to mention some).
That being said I'm sure Chessie completely is a better place to be this summer compared to last (not to mention scorpion & rammy open again) plus operations this year are slightly better, at least it's not like Oakwood where speed is in 1 car op and fast pass is being used (least vampire does have a spare again now even if it only runs 2).