Gameplay first then graphics.

gameplay. Im used to bad graphics since I don't have a very good video card

Left4dead 2

Gameplay, but the graphics are nice too, I like as King of Fighters 2002, Street Fighter, Metal Slug, and all old games
Arcade games, N64, PS1, Crash Bandicoot, Super Mario 64, Super Smash Bross, Zelda Ocarina of Time and very very much games more

I prefer gameplay and graphics usually don't bother me much unless it looks extremely dated.

Gameplay is what keeps you busy and interested in a game. Nowadays there are many good looking games that look as nice as the prettiest landscape but are just as deep as any ordinary puddle.

Gameplay most important

im in the middle, I love graphics the most. But it depends on how well the game is made and the options they leave for me to do

Gameplay with graphics of course Graphic doesn't bug me like a bad gameplay.

Gameplay is key. You can have the prettiest game ever, but if the gameplay is boring or poorly done then it ruins the experience