What is Your Favorite Tetris Block Shape?

I'm a big fan of the long, skinny one... but I also have a certain affinity for the L and backwards-L.

I have decided that Tetris is the pinnacle of human technology. Think about it. It serves no purpose. It is 100% useless, but posesses a simple genius that keeps us (and by us, I mean me) entertained for long periods of time. It's been around for how many years, and it hasn't lost its entertainment value.

That I can waste hours dropping blocks on a little screen is kinda sad. That I flinch non-voluntarily when I drop a piece and it's not where I thought it would be is even more so.

Its genius lies in its simplicity. There's no "secret" to it. With so many video games, once you beat it, the challenge is over. You've beaten it, you know its secrets, the romance goes out of the relationship, so to speak. There's no "beating" Tetris, I don't think. You play until you lose. Then you play again, and maybe do a little better. You can always do a little better. Like playng Scrabble, you can learn little mental tricks and hone your technique, but your first game is just as challenging as your last.