I'd pick A.
Less likely to die. Even if I somehow looked like Levrone drug free (?), it's gotta be hard on the heart...it'll just break down earlier pumping all that blood to all those muscles. Not that it wouldn't be cool, but it's not like at physique "A" I'm a piece of shit...still better looking than 99% of men on earth, and that gets even more amazing as I get older.
Would rather look like "A" for 75 years than "B" for 60 years. Those extra 15 years of looking like a god in my nursing home down at Del Boca Vista could prove to pay dividends with all the rich widows I find down there while playing canasta. I did the calculations on my Willard.