Which school, if any, would be best for applying to a top 20 grad school?

[davewill]

Thanks for your reply. It sounds like either way, I should take some courses even if I could use alternative credit so that I will have a sufficient number of graded courses. I am thinking about the online MSCS from GT for my grad program, and it seems like several people on this forum have graduated from TESU and been accepted at GT. Can anyone confirm this?

Yes, I was accepted into that program right after getting my BACS from TESU. Of course, I had 30 years of professional experience and just needed the degree to check that box. I later decided I didn't have the time to commit to it. 

If that's your goal, I would definitely prioritize getting solid work experience over where you get your degree. Join the OMSCS group on Google+ and Reddit, and you will see lots of people who got in with greatly varied credentials. Their main admissions criteria is whether they believe you will be able to graduate the program. There was at least one person who went from graduating from OMSCS to a PhD program at GT. The OMSCS program accepts online students as TAs, and that's how she got her foot in the door, working closely with the faculty.