A glass aquarium can keep temps and humidity just as well as a rubbermaid, however they require some modifications in order to do this (covered top, air exchange, etc) and are more diffucult to clean.

In short;

Glass - good looks, harder to clean, maintain
Rubbermaid - not as pretty, functional, easy to maintain

So just decide what means more to you, and thats the one to go with. Niether is going to house a more or less healthy bp if set up correctly.