Aqueon tanks are usually a little more expensive but they are made with thicker glass across the board and better cross braces.
Miracles tanks (made in Orangeville Ontario) are also very well made.
Marineland ones not so much. they hold water obviously, but their safety factor is not going to be as high as Aqueon/Oceanic/Miracles. except their 3 foot wide deep dimension line of tanks. those are very well built. but they cost a fortune.
I'm actually kind of bummed out they didn't have any big ticket items on sale... Was hoping I wouldn't have to craiglist/kijiji everything for new setup.