Synful Orchestra sounds fantastic and add a nice reverb on top it's like pure silk. So really you can't go wrong there at all.

Edirol Orchestra on the other hand is not even in the same class. It's cheap and cheerful, but nothing worthy of mentioning to anyone as something to buy.


Have you seen “Quantum-Leap Goliath”. It's a huge library that covers everything including the GM table and much much more. This will give you all the instruments your used to on keyboards only sounding better, plus a massive collection of other sounds that will simply blow your mind.
http://www.soundsonline.com/Quantum-Leap-Goliath-pr-EW-176.html

If you could only every buy one library in your lifetime, Quantum Leap Goliath would be that one.