The Battle of the Pre-orders

Any serious or casual gamer should be excited for the next few months. Plenty of highly anticipated games will be making their debut, with one of the most anticipated being Call of Duty: Modern Warfare 2. Until most recently the only factors that dictated where I should actually buy debuting games were the location of the store (how fast can I get this game and get back home to play it) or maybe an online store that happens to be selling the game for a bit cheaper (with free shipping of course).

Now all of a sudden we start seeing a store like GameStop offering up pre-order bonuses that have ranged from interesting to downright stupid in the long run. I was all but sold on buying these upcoming titles through GameStop so as to not miss out any potentially popular bonuses, but with Best Buy running this new buy one get one 50% off sale (check out the titles offered) it leaves me wondering where to get what. What have you guys decided so far? What bonuses seem worth it?