:LOL: I wouldn't have used glass in my tank build,'cept I couldn't find the transparent plywood,seems to be a shortage of it
glass is easier for the average DIYer to work with,but unless you get low iron glass,acrylic is more transparent/clearer than glass,it's trade off is that it is extremely easy to scratch but don't think for a second that glass is impervious to scratches,mine has some terrible scratches and they can't,to my knowledge,be removed......with acrylic,scratches can at least be sanded and buffed back out,lots of work though,and extremely difficult,at best,for a running tank
if built properly,neither is bad for an aquarium,both have advantages and disadvantages,it's all a matter of what you like best......
I prefer glass,mostly because I've never tried working with acrylic,so I wouldn't trust my gluing abilities with it...I want to some day build an acrylic sump and try my hand at it but it'll be a long time down the road for that