Libra2005, How about you do some research on your own instead of creating a new thread for every question you have. I highly doubt most of the people here have the answers to all your questions - at least not accurate answers. If you do full master level work, almost all universities in US give you a M.S. degree. Some schools like MIT have M.Eng. degree which they give out to their MIT undergraduates only who are not pursuing PhD and want a quick masters degree. But as far as I know, all top engineering colleges require you to acquire a M.S. degree before you can pursue a PhD degree. Thus, to answer your question, M.S. is generally a better degree.