Morey's rebuilt the ride and added new trains pretty recently. It runs amazingly well. They did the same thing with Sea Serpent.
Riddler's Revenge at SFNE has the new trains so it runs better than it would've if it had the OTSRs.
Twisted Typhoon at Wild Adventures still has the old OTSRs, but its not as rough as a lot of SLCs are.
T3 was pretty trash. Terrible operations and really uncomfortable restraints. Good riddance its gone.
Mind Eraser at SFA is getting reworked so it'll probably be about as good as Riddler's Revenge is. That being said, it was awful when I rode it. One and done for me.
I've pretty much skipped every other SLC I've come across. I can't stand those old school Vekoma OTSRs.