Dnj,
To be honest with you aside from the Triton product you mentioned, I think the top end arrangers tend to hvae better bread and butter sounds than many of the top synths. I think the good arrangers really shine in the acoustic voice area. I remember when I owned a Roland XP-60 and Yamaha EX-7. I felt that some of the acoustic voices on my lower end Yamaha sounded better. Look at the new synths such as the Yamaha Motif ES. They're now using voices like sweet, cool, live, and mega on this model.. They've taken the voices from the arranger line up because they're good enough to be used on the pro synths...
Squeak
_________________________
GEAR: Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller). SOFTWARE: Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.