I made it on MS Paint. It's Nikola Tesla.
If I can be very bothered again I will make a Houdini one but not right now Dx

Mine fits my username perfectly.

My avatar is a picture I drew of Tron Bonne from Mega Man Legends. She's a spunky air pirate who loves to create machinery & weapons. She has a crush on the main hero of the game however, since she is a pirate they usually end up fighting each-other. I drew this picture to show support for the Legends series. The third game had been canceled awhile ago but the first two games are some of my very favorites!  

Mine is a smiling apricot. It's a joke about a character in one of my novels. He loves apricots due to a bizarre childhood incident.

I don't mind still or animated.

Now my avatar is Zelda U Link, which I made in MS Paint myself

Ahn Jaehyo aka. Derphyo from Block B.

My blog is filled with him.

Rin from Free! going wtf.

Mine is Fluttershy sleeping. :3

Mine is Kita, my page's "mascot" if you will.  angelishi made it for me

It depends on the icon.  I personally like animated ones because there are more possibilities, but at the same time I've seen a lot of really gorgeous still ones.  I guess what matters most to me is icon quality.

A peeking portrait I drew of my OC, Candy, since he's my favorite OC.
I actually like gif icons a lot, as long as they're entertaining.

Mine is a Ghost from the video game Destiny.
And to your question: I prefer both. They both have there cons and pros.

Mind comes this awesome anime called Watamote! It is specifically in an episode where she hangs out with her old friend and they attend an arcade. This is her playing a game she was reallly good at.

It's a kind of like my OC dog thing.. but I've never really treated it as a full-fledged OC so far... with Gatotkaca costume.. my username is a mix between my nickname and Gatotkaca... because of some thing that I did years ago on the internet.. and that's why I chose that to be my avatar...

Mine is a blue version of the Autobot Insignia from Transformers

In answer to your question, I used to like having animated avatars, but now I'm fine with still

Mine is a girl with horns.
I like animated pixel icons, but, I just mike static pixel icons cause I can't make one using my tabletvo-ov

My avatar is a very small version of this one

My avatar is a Mew that fails at cosplaying Yoshi and keeps running with superhuman-endurance for the animations sake ♥

Took me two whole days to make :'D

One of my photos. It's just me holding a heart I made out of snow because winter is magical!

I have no preference, I like both types of avatars equally.

a shot of me at a nearby bay birthday picture lol.