Thank you for mentioning that her eye color is the same as the PM version. Though my Felicity is Mattel (bought her in 2004), I have a very PM green eyed AGT doll, purchased in 1996, whose eyes are the *exact* same color. The only difference being that Lissie has black eyelashes, and my AGT has auburn eyelashes. I think the dark eyelashes is enough to make the eyes look brighter, when her hair color is so light. I'm not saying that's true of all the green eyed dolls, but it's certainly true of mine.
I think I'd give Mattel Lissie a B+ or A-. I think it's hard to rate any doll, given that *your* doll is going to have special meaning to you, and will be prettier to you than others may find her. I think those who have a PM Lissie will definitely find M Lissie less pretty, with her auburn hair. Honestly, as a huge fan of red hair, I'm not fond of the PM red color, it's too pink, but I find the M red too brown. I think both are ok colors, and I would have a hard time picking which I like better. I will say that the M eyelashes look bad with the auburn haired Felicity, and wish she had lighter eyelashes. That's my main complaint.