Ok, this I know!!!
We have granite in our kitchen, and we are having HUGE problems with it!! We have been in our house for a year, and right after we moved in, we noticed that the seam was coming apart, causing one edge to sit higher than the other! We have had the company that put the kitchen in back many times through the entire year, and it still happens. Well, now they are telling me that they are going to have to take the granite out and put new granite in! UGH!
We also have corian in our bathrooms, and we have not had ONE problem with it! When it's a dark corian, it closely resembles granite.
Both have pros and cons. Hot pots and pans can be placed on granite, but if you get oils on it you will see a stain. I set the olive oil bottle on the counter while I was cooking, and it left an oily ring! I've also been told tha someone had placed the chinese food containers on the counter while they were eating, and it left stains on it!
Don't get me wrong, I love granite, it is very beautiful and it is strong, but there is a lot of upkeep with it!
Hope this helps! Sorry it's so long! Good luck!