That’s a really hard one.

Everything from Meddle to The Wall are absolute timeless masterpieces.

I never quite got how Pink Floyd managed to give every album such a unique vibe, they are not even remotely comparable and in different moods each one may be my favorite one.

Meddle is incredible. The atmosphere is great and Echoes is just something else. One of the very few 20min+ Songs i just have to listen to time and time again. I also love the Bass(es) in One of these Days.

DSOTM has an incredibly dense atmosphere and of course a few of the most popular songs like Time and Money.

I just love Animals. The more aggressive, more rocky sound has such an incredible power. Pigs (Three Different Ones) may be a great contender for my favorite song. I’m probably not as anti-capitalistic as many around here but listening to this song triggers the urge to burn down some estates.

Wish You Were Here is incredible again. Welcome to the Machine is another contender for my favorite song. Wish you were Here an all-time classic again.

The Wall is the climax. From an artistic standpoint it’s imo the best album. The dark and gloomy atmosphere combined with the theatrical drama is incredible. Another Brick in the Wall Part 2 and Comfortably Numb again very popular songs.

So… my favorite album is probably Animals as I’ve heard that the most but of course it’s a close match and in a year my opinion may be different.