Here's a comparison of Papertrey Ink's New Leaf (NL) and SU's Wild Wasabi (WW). WW looks dull and almost sage-y next to NL. It's still a glorious color, but PTI's green really pops without blinding you. I didn't buy the NL ink and I'm reading some complaints about the color on PTI's forum. I'm reading that NL ink looks more pine green and doesn't match the cardstock. The ribbon is kind of that way too, it's not as bright as the cardstock but I still like it! I bought Pallette ink from PTI in Landscape several months ago and it's a nice bright green and works well with NL, so I will stick with that.
Hope this helps!