Chanel has some gorgeous blushes, esp. Joues Contraste in Orchid Rose, its the most beautiful colour- a peachy, nudey, glowy beige that looks sooo natural yet gives you a glow that emphasises your cheek bones nicely. This is lovely for day time..
i also like stila waterlily rouge pot which is a lovely pinky beige colour..and applies like a dream..i'm a huge fan of blushes so i do have many others.. but these 2 being my current fav.
oh, ive been wanting to get Chanel reflex as well..which im sure many wouldve heard of..
as for worst blushes.. i havent come across any bad terrible blushes just yet since its hard to go wrong with quality brands..and im cautious with picking colours..