I voted for DVI... but the problem is that it only allows ONE vote...
My gaming PC uses TV to connect to my monitor...
but I also use component to connect to high def TVs & projectors... (for media center functions, for playing on a massive screen, etc)
and on occasion I use VGA to connect a second computer to the same monitor as my gaming PC (so I can switch between them by pressing one button... the input button on my monitor... I wish my monitor had two DVI inputs instead but it doesn't, so I use adapters)