Both are good.
When Leo came up with the split,
he wanted to avoid the hum from the single coils.
However, there was another reason for the design.
The large single pole pieces gave more attack,
which some of us may well like, now,
but at the time that was destroying the speakers available back then.
Now that we can have speakers that can live with the original design,
we can have the sound he first intended.
Even moreso with the option of them being humbucking.
Or we can have the less agressive splitcoils that we have
all come to expect.
There really is no wrong answer.