Blackburn Sing Sing (I use it instead of the Krypto Mini Evo nowadays) hex shaped U and double locks instead of single sided on the K .
I like the Krypto because it's all rubber coated, Blackburn only on the inside but hasn't been an issue.

The Krypto NYF is the best but it is pretty heavy.

Never use just a cable lock, only use it as a secondary.

If I were locking up for any length of time, I would use 2 U-locks (different brands) and a hex, hardened chain.
Paranoid and heavy, yes.
Don't like one way trips w/ my bike, yes.

IMO, at least one of your locks should be a NYF

edit-
I've seen that Sheldon Brown hack but usually, thieves like to ride off on the bike or have the bike otherwise complete.
It's a good warning though.
I lock higher up at the seatstay and rim, that way the frame and wheel are both locked.