Essentials is a nice window but to really compare to the Elements, the Vanguard is the more appropriate comparison.
Aluminum is nice too but will not give you the air, thermal, or structural numbers as compared to the higher end vinyl in that selection.
If you haven't already, you need to get a quote from Randy on this board. He serves that area.
If you need to, you can click on his name here: http://www.vinyl-replacement-windows.com/forum/viewtopic.php?f=1&t=5228