wow 3 very different games to compare. a lot of it depends on what u value in a game. looks, depth of code, speed, music, etc. i have GB and SW. passed on AS because i think KISS is better. SW takes a little more time to grasp how many different ways you can play it. SW is the fastest game and gb i think might be the slowest of the games but it isnt that slow. all take flipper control to get them cranking.
but all of this is just my personal opinion. i say got a local arcade and play them all back to back.