It is really hard to choose one, you really can't. But just to give you an answer, my favourite would be, my opinions change often.
Bat Out Of Hell: Bat Out Of Hell
Dead Ringer: I'll Kill You If You Don't Come Back
Midnight At The Lost & Found: --------------- (Never heard enough to know)
Bad Attitude: Piece Of The Action
Blind Before I Stop: -------------------------- (Never heard enough to know)
Back Into Hell: Objects In The Rear View Mirror May Appear Closer Than They Are
Welcome To The Neighborhood: Amnesty Is Granted
The Very Best Of Meat Loaf: A Kiss Is A Terrible Thing To Waste
Couldn't Have Said It Better: Did I Say That?
<Rare Singles>: Decadent Wish
I like all of Meat's songs for many reasons, and just because there is an answer here, that could change by tomorow.
Bold Is My Favourite record