Well, since I'm using only one arranger, which is a Yamaha Tyros4, it's pretty much going to be Yamaha styles.

However, what I use for my tunes are basically heavily edited, and, for the most part, they are made up of parts from styles from both new and older Yamaha keyboards, and also bits from a few Yamaha Premium and MidiSpot styles as well.

I tried using parts from conversions of Korg and Roland (and a few Casio) styles but, for the most part, they didn't really work that well for my purposes.

Ian