(This is based off of another thread)
You have two choices, either you can get Destiny in the next few month but it will be not to its full potential since it would have to be rushed quite a bit.
Or you have the best CoD game ever; No OP anything, impossible to camp or quickscope, squeakers are banned, no dropshotting, no lag, it actually takes some skill, and finally, you won't be against MLG tryhards while you're a casual/ with a team of noobs.
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Here's what you have to consider about your question. With COD what you buy is what you get. With Destiny the game will be added onto and built upon for the next decade at least (not a random guess, Bungie statement). So in the end even if Destiny released with issues, which with a game of this scope it will, they'll get changed, added onto or fixed over time. That "perfect COD game" will have issues as well because testing isn't a 100% thing, and still be essentially the same as the previous games mechanic-wise.