Collection 2000 Lasting Perfection Concealer is literally the best concealer I've ever tried. My shade is Fair (1), which is the lightest one. It's nice and creamy and gives medium to full coverage, it doesn't get cakey or dry. I don't apply it straight on my face, I put it on my hand first and then either with a brush or a finger apply it on. It goes on smoothly and stays in place all day, I can't say enough good things about this. However, the packaging is not as amazing as the product, the writing comes off really easily but then again, what's inside makes up for it.
Rimmel Match Perfection Concealer is actually a concealer and a highlighter in one. I use this one mainly for the area under my eyes and my shade is 010 Ivory. It has a pretty natural finish, and wears nicely throughout the day without fading or getting cakey. I'm not too fond on the packaging of this product, but it works well, so I'm not going to complain. I apply it the same way as the Collection 2000 concealer - with a finger or a brush.
Maybelline Fit Me! Concealer is definitely the nicest looking one out of all three. My shade is 15. It has the same kind of applicator as the Collection 2000 one, so I use it the same way. Its consistency is quite creamy and blends into the skin really nicely, it doesn't sit in the fine lines and doesn't look cakey. It holds up well, I usually have it on for about 8-9 hours and don't have any problems with it. I mostly reach for this concealer when I can't find my Collection 2000 one, or when I run out of it.
Collection 2000 Lasting Perfection: £4.19
Rimmel Match Perfection: £5.99
Maybelline Fit Me!: £5.99