Here are well-known clones that come to mind:
Batman B&M inverts
Sky Rocket II's
S&S Free Spins
Superman B&M flyers
What is your favorite and least favorite ? My favorite is the Sky Rocket II and my least favorite is the Boomerang. Of those, I like the one at Six Flags Discovery Kingdom the most and dislike the one at Blue Bayou Dixie Landin' the most.
Ultimate Rollercoaster Moderator
While we are talking about Vekoma, there are just a couple of Boomerangs that didn't try to kill me. They were Sidewinder at Hershey and Bat at Canada's Wonderland. I herd that Flying Cobras at Carowinds has new restraints that make a big difference, but I don't know that I was able to ride that with them.
Anyway, I'm sure that most of us are still not ready to use "SLC" or "Boomerang" along with "good" in the same sentence.
I'm not particularly fond of Vekoma SLCs. The layout is bizarre and I have my doubts that they'd be a good coaster without the head banging.
I still remember riding Kong at what was Six Flags Marine World at the time (now Discovery Kingdom). It was the first time I'd experienced a smooth SLC with no head banging at all, and it wasn't a bad ride at all. It wasns't anywhere near a fantastic ride that I was raving about, but it was one that I liked well enough to go reride again twice that day.
It's also left me wondering ever since why that one was smooth on that day and almost none of the others were.
A definite clone that I enjoy, is Batman: The ride at Six Flags parks. The G forces feel insane to me now (just turned 30). Never used to affect me but now it feels super intense. Love it!
157 Coasters -- Favorite Coaster -- Nitro (SFGAdv)
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The Batman clones are very intense, more so than a few of the other longer B&M inverts. The very first one at SF Great America and the one at La Ronde ride a little better. The one they call Great White at SeaWorld San Antonio seemed painfully rough when I was last there in 2014.
Not many around anymore with all of the reworking of woodies, but Viper at SFGAm comes to mind as one of the better clones of the NYC coaster.