HI guys, I think illustrator having better options for trapping. set color and over print it. also you can see effects by selecting over print preview. Working with esco software is the end solution for all pre-press work.
some of examples in below sites, I hope it may helps you.
Overprinting Colors in Illustrator.
Real World Illustrator: Spot Colors, Transparency, and Overprints, Oh My!
