I've owned several over the years.
EShopps: Whoever designed these things has never owned a marine aquarium. Entire sections you can't get to for cleaning? Never again. Cheapest materials... just no.
Trigger: Pretty good designs. Lots of choices. Used to be good quality, but they moved production to China some time back. Materials are getting thin, not the same anymore.
Bashsea: Made by a guy that knows marine aquariums, out of the best materials, construction techniques, etc. Top shelf. Don't see what you really want? Give 'em a call. Chances are pretty good Steve Bashi himself would be happy to answer your questions. Did for me
I have no experience with the others... but Royal Exclusiv Dreambox? Someone want to send me one to review, I'd be happy to do so