Answered by someone who WANTS to like lipstick but never actually remembers to put it on:
I'm more on the meh side about Medieval. It's pretty, and light, but not sure its all that special. I have not tried Jean Queen. I did just order Frog Prince (see I keep ordering these and forget to apply....).
I like both of them, though Jean Queen is a bit more bubblegum pink than I like wearing most days. Both are very comfortable and balm-like, and both last ~3-4 hours on me before I need to re-apply.