I think, to be honest, GS1 may be 'simpler' to understand in concept, but in the end, you'll only be hurting yourself. One way or another, you're going to be learning the basics of scripting and format, so you should just start with GS2. For simple scripting, it's not all that different from GS1, so I wouldn't see the big advantage of starting over GS2.
GS1:
PHP Code:
if (playerenters) {
playerx=32;
playery=32;
}
GS2:
PHP Code:
function onPlayerenters() {
player.x=32;
player.y=32;
}