I have had a few members notify me that they had downloaded one of my images, but were altering its dimensions to better fit their monitor screen.

I tend to make and submit wallpapers that fit my own HD monitor. However, HD monitor screens tend to be wider and shorter in ratio than the older or more standard 4-to-3 screen ratio monitors.

So my question is: what is the best, most universal sized image to offer?

Thank you for any and all replies! :)