I think the first two albums are vastly under-rated. Ask most people on this board and BJ and 7800 will feature in most people's bottom three albums. I'd say on each album there is a great core group of songs.

Bon Jovi - Runaway, Burning For Love, Breakout, Get Ready, Shot Through The Heart

7800 - Tokyo Road, Hardest Part Is The Night, Price Of Love, Silent Night, Only Lonely