My experience with Junior's clothes at Kohl's has also been that I like the style better, but the cut is significantly smaller and a bit shorter than the "regular" clothes. Since I'm 5'3 (and a half), I like the shorter cut, but the sizing can be a real headache. I haven't tried the Junior's Plus sizes, but to give you a rough idea: I usually wear a medium on top, but in Jr's sizes that typically translates to an XL and *sometimes* L. Pant sizes are so wonky it's hard to give you a general idea, but I'd say at my size 10 regular, I'd probably do a 12/13 in Jr's. But clothing manufacturers seem to *really* hate women/girls when it comes to pants/bottoms, so it's just a bunch of trial and error.
Hope that helped - let us know how it goes!
Start Date & Weight: 5/12/10, 250 (or thereabouts)
Current weight: 154.2
Pounds lost: 95.8
Goal Weight: 140