Not really an entire album I like, just certain tracks from various CDs...

'78 - Totally hot - A little More Love
'81 Physical - title track
'85 Soul Kiss - Darling you were great, how was I
'88 - Rumor - Haven't listened to that one in awhile.

And of course, Grease.

She's strong though; I think she fought breast cancer and released new music recently.