Acrylic:
Light
Better Clarity
External Overflow Box Option
Bended Corners
Very low chance of a leak
Higher resale price
Disdvantages:
Very prone to scratches
More expensive
Glass:
Takes a lot to scratch it.
Cheaper
Disdvantages:
Cost more to get Starfire Glass to get the clarity of acrylic
Heavy
Green tint with cheaper glass
I am a glass man I do not like any algae but I am lazy and would scratch the heck out of a acrylic tank by getting sand in the magnetic cleaner.
I would suggest you do a search on
www.reefcentral.com this topic has been debated forever. Its a give or take with both.