Best Credit Card to Build Credit.

[Jeremey Allen]

I am not sure if this is the correct forum to post this, but I didn't see anything specifically related to my question.

I am currently trying to build/rebuild my credit. I got sick while in university and defaulted on a student loan. This and my medical bills wrecked my credit. I believe the medical bills will be removed from my credit report in six months or so. 

Which credit card would be the best to start off with?

Should I get more than one?

Should I get a secured or unsecured?

Should I keep the balance at 25% or 30%?