I have always hated cases, but I'm liking the Otterbox Defender for my 5 that I just got.
They are coming out with a new one this month called the Otterbox Armor, looks really cool.
What's nice about the Defender is that the screen protector is built into the case, you don't have to apply it to the screen.
No problem dropping this thing now, it's pretty well protected from any normal abuse.