M3 Lee, no doubt thanks to Sahara.

Challenger.

Tiger...

Tiger I for me. Looks so menacing and a scary reputation.

Favourite AFV of all is the Sd.Kfz 251, especially the /9.

Got to go with the M60A3, that's the one I learned my trade on in the mid-80s.  Immediately came the appreciate the superior design of the M1 Abrams but you never forget your first.

my god it will have to be the KV-85......

Almost all tanks look beautiful.  If I have to choose, I'd say my No 1 is the Jagdpanther and my No 2 is the Panther.

As far as tanks go, I'd have to say the Antos and the Sheridan.  That being said, I'll always have a soft spot for these:

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Gotta love what you drove.

Lol, I forgot about the game tank from Tron, it was pretty cool!

Sweet. I knew a light tank from Tron would show up sooner or later!

For some reason I've always liked the Merkava Mk 4.  It too has a future look about it.

Here's my favorite...

Tank?file=LightTank.png

I am fond of early armor, before the military knew what a successful tank was supposed to be.

My favorite is the M3 Lee. Basically the M2 medium tank  that gets re-engineered to mount a 75mm gun in order to deal with emerging threats discovered by British combat in North Africa. They know it isn't a solid design, but they produce them in large numbers because a tank with a large caliber main gun was needed now.

For me--if I have to narrow it down to a handful, I'd say:

WWII:

Hetzer, Jagdpanther, Stug III

Post-WWII to Modern:

M60, T55, T90, M1 Abrams, and the Merkava Mk III.

I tend to go for tanks that have that "dangerous-don't-mess-with-me" look. Tanks that look mean just sitting there (especially that Merkava), yet offer a variety of fun painting options and can easily take What-If paint schemes.

Klik

King Tiger with the Porsche turret, or the Panther A and G.

As a few have already mentioned...the Panzer IV. Specifically the later models with the added turret armor. Even as a young kid years ago I liked the lines on that tank the best.

Panzer Mk IV with the long barreled 75

For a T.D., it's got to be the M18 Hellcat.  Just a speedy, sexy beast.

German Mark IV

WWII:

T34 & Sherman

Cold war:

T62

Modern:

M1 Abrams, T90.

But the killer tank all times is the Tiger T1 - not sure why, but I have 8 in the stash right now...

On the bench - The M1 Abrams "Angry American"

Happy Modelling :)

Zack

Wow. I'm going to formally split the answer into two segments, as I see happening a bit:

Favorite to model: M26, specifically the Tamiya kit.

Favorite actual tank: Magach6B-Gal

That was hard to narrow down, mainly because I like LOTS of different tanks, and kits of tanks. It's kind of like asking what variety of red wine I like best.....  :)

Tiger (early) for me.

modern:  my favorite is Merkava (any version) because it made for saving crew. i mean engine in the front like additional protection for crew and it's realy saved many lifes in Israil wars.

WW2: early version of T-34 (it's more interesting for modellers than late) and Sherman (because it was everywhere: in Ostfront, in Europe, in Africa, Pacific islands and interesting for modeller because of many versions of it)

Got to be the M1A1 Abrams Main Battle Tank. Since that is the type I spent the majority of my time on during my 6 year stint in the Army.

But I'm not sure I have one that is my favorite to build a model of. I pretty much love them all!

My favorite (not actually a tank, to be armor-correct) would be the Jagdtiger.   It's just got a brutal, powerful look to it (even more than most tanks do).

I'll go with Merkava too.

King Tiger Henschel turret

T34 85.

Tiger (early production)- specifically Tiger S04 as commanded by Michael Wittmann.

Dave

IDF Merkava IV

late model PZ-III,E and above. i have no idea why. i do like the look of the LEOPOLD 2A4 which is why i have a couple in the stash. and probably IDF CENTURIONS '67 and later. but i'm really more a modern wheeled AFV guy.