Help me pick a concealer?

Hey! So I'm about to head off to sunny Cali for vacation, and I'm dying to get a new concealer to cover up my skin blemishes. I have scars on either side on my noses, and blackheads -- [joy] -- I was wondering what kind of concealer would be best for covering up both as flawlessly as possible? I'm considering Neutrogena products, but then I'm not sure if I should use the mineral or liquid concealer... or are there any others that are better? Anyways, please help! Thank you so much. :)