Looking at the list Whitney Houston (she's so rock n roll) looks like the most likely shoo-in, followed by Biggie.
7 who should get in: Biggie, Soundgarden, NIN, Depeche Mode, MC5, DMB and Judas Priest.
Based on the hall's gloried history, 7 who likely will get in: Whitney Houston, Doobie Brothers, Rufus w/Chaka Khan, Biggie, Todd Rundgren, Thin Lizzy & T. Rex.