I found out about this site a few weeks ago. It's helpful for achievement whoring. You can sort 360 games by TA ratio to see which games are an easy 1000/1000 and which aren't. And you can go to the easy achievements section to see which achievements that you don't have yet (for the games you have) are the easiest for you to get. I have yet to rent or buy a game for the purpose of getting easy achievements though since there's no point in ignoring games that you really want to play just because they have hard achievements. That defeats the whole purpose of video games (to have fun).
Avatar: Last Airbender or whatever is called has the lowest TA ratio for a 360 game. Go figure. rofl. That game is infamous for easy gamerscore.
The site also has some good tips for getting individual achievements. I haven't taken advantage of any boosting opportunities though. I just don't feel like going through the trouble.
