How to play AK in $5/$10 SNG's?

[Ixnert]

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... and costs you the most chips when you miss. This is a leak.

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I don't see how this is a leak unless you like five people coming along with your AK. I'll admit that AK has typically been a trouble hand for me, but that's more by virtue of doing stupid crap like continuation betting into a four person pot.

It was my understanding that you don't want to be playing AK in a multi-way pot if you can avoid it. 75 or 90 (in level 1) usually narrows the field while 45 rarely seems to. Not to mention that I usually have the best hand at this point (or at least no worse than a coinflip). What am I missing here?

(In a higher buyin, I would raise to 45 or 60 instead, because there's somewhat more respect for a reasonable-sized raise. Least amount that acheives the desired outcome and all.)