What is a PAF style pickup?

I am trying to replace the pickups in my semi-hollow body guitar and have had many people tell me that those were the pickups to go with. One more question. What are the advantages of having a split ploe pickup?

PAF stands for Patent Applied For. The early Gibson humbuckers were released to market before the patent had been granted on their design.

I'm not familiar with the term 'split poles'. Some pickups have adjustable pole pieces which can be set to give more even loudness across the strings.

A humbucking pickup has two coils of wire in it, allowing different options for connecting them. This is sometimes referred to as a split coil setup.