Which mattress to buy, stuck between 2 types!?

I am in the middle of buying a new mattress, have just recently bought a new bed. I've narrowed it down to 2. One is a dorlux pocket spring, with 1000 pockets, the other is a dreams bed, with 600 pockets, and a layer of memory foam on the top with a quilted cover. I'm stuck between the 2, so any experiences with similar mattresses or these 2 brands of mattress would be helpful! cheers :)