As mentioned, Oceanic and AGA are basically the same company, but AGA is their economy economy line. Oceanic has another economy line, previously called Nature's View or something, but now (I think) called "E" series tanks. It is a good tank. They only make two trims (black and wood, I think), and they come only in certain sizes. The top line are Oceanic tanks, and the quality is top notch. They are especially nice in their furniture quality stands and trim. For a large tank, personally, I would not use an AGA, though overall they are not bad. But I don't think I would use one for larger than a 55g. Overall, the Oceanic tanks are going to be the best in the glass tanks. They are very good, and, with their stand, have a long warranty.
I like acrylic tanks as well. It basically comes down to liking one look over the other. Tanks like Tenecor with the rounded corners may appear more modern to some (also the stands and top), and that is not liked by some, or doesn't match the decor.
As noted, both glass and acrylic can scratch. Go look at the tanks in your LFS, which are probably glass, and probably scratched. The drawback is that you can not buff the scratches out of glass. Light scratches can be buffed out of acrylic. I also think the other criticism of acrylic, that it yellows over time, is no longer accurate.
**BUT, I would be real wary of any LFS that says Oceanic only sells acrylic. Either they don't know better, which is a warning flag, or they are trying to dupe you, which is a warning flag. Either way, I would look for a different LFS.** Also get a detailed quote, and any LFS should do it, on what is included in a package price. She may include things that others don't, like a light strip, etc. I have seen these things sold in all manner of tricky terms.
Great tanks, both!