Creationists cannot point to any positive evidence to back up their claims, so they can only attack evo. But negative criticism can only take you so far. Theory of Evolution is our best explanation. If you don't like, come up with a better one.
Evo Works
So you don't like Evolution?
(How do you feel about the earth not being the centre of the Universe?)
So what are you going to put in it's place, that will explain all the millions of facts we have?
(And do try to get past Biblical Creationism - we knew 200 years ago that the bible was not an accurate guide to what has happened