IMO a lot of Poly Sci professors/teachers make you learn TOO much. i.e. they make you memorize 30 court cases, which only about 1/2 are really necessary. If I do become a Poly Sci professor one day, there are only a few that I think you should know.
Roe v. Wade
Plessy v. Furgeson
BOE v. Brown
Planned Parenthood v. Casey
Griswold v. Connecticut
etc. etc.
I'm a big USSC person, so a lot of my research and my dictation is/will be about the USSC. Plus, if I do teach Poly Sci one day, much of my course will revolve around the USSC and how the other two branches revolve around it.
Ok, starting to sound like a HUGE dork now, so I'll shut up.