Which political spectrum section engages in the LEAST whataboutism?

[I spent the winter writing songs about getting better]

Definitely the center-left. Not saying that we're completely free of this stupid and irritating as hell fallacy but all the other ones have a special fondness for it:

Far left: Only way to defend the repulsive dictators and some other world leaders so many of them are quite fond of.
Center: "BOTH SIDES DO IT"
Center-right: Kind of the inverse of the far left, use it to defend bad US foreign policy moves or awful non-socialist world leaders, and to defend people like Roy Moore and Trump while emphasizing they don't like them.
Far right: See basically both the far left and the center-right.

...proven recently by the center-leftists not just endlessly screaming about Trump and Moore in regards to Al Franken.

[I spent the winter writing songs about getting better]

I very rarely see the far-right attempt to justify their viewpoints to other people, so I'll go with them.

"What about black on white crime" is a pretty big one

Also "what about Antifa?, "what about Dresden?", etc.