I thought it might be about time for another comparison post... This time I have two hot pink shades with shimmer that flashes blue. These photos are of China Glaze '108 Degrees' (middle finger and pinkie) and OPI 'It's All Greek To Me' (index and ring fingers).
Both of these polish are shown with 3 coats (I think... I left my notes in Wellington!) and no top coat. They are both gorgeously shiny without a top coat, although, if I was actually wearing them I wouldn't skip this step. I don't often wear colours like these so I don't own both ('108 Degrees' belongs to my Mum) but for my obsessive self they are just different enough to warrant owning both. For those slightly less convinced that even the smallest difference means you should purchase, then you probably don't need both. I guess it comes down to which shimmer you prefer. I'm on the fence with this one, I quite like them both (especially in the sun)!