[Kureo]

Well the title might be a tad misleading as I don't want to know the best, but rather which ones you tend to use and why you use them and not any other uploading sites! So please share it! ( This will not only be helpful for me, but for all members that want to uploading images to new sites! )

[Judas]

http://minus.com

/thread

[Guardian]

I always use http://someimage.com

It has always served me well in the past, and never fails. Can host single images or galleries, or you can keep track of all your uploads if you create account. Don't have to if you don't want though.

[Snooze]

I just use photobucket, find it is very simple and easy.

[Sly]

I prefer using Minus because it has many sharing options and is very simple to start uploading. I like the simplistic feel of minus, although the speed has decreased lately imo.

[Harvey]

Imgur is clearly the best.

[Mafia]

I use tinypic, it is stable.

[Judas]

Imgur is clearly the best.

Imgur decreases the quality of high resolution images.

[#Blur]

I use minus.com, it doesn't ruin your image quality.

[HuRRR]

For general (no porn) pictures I use : http://imgur.com/
And for porn I use : http://postimage.org/