Which is more important, lining up cam marks or crank mark?

I did some work on my Honda and when I turned the crank to line up the timing mark and then looked at the cams to be sure they matched each other too, I saw that the cam notches were off by a little more than a tooth when the crank mark was matched exactly. Then lining up the cam marks exactly caused the crank mark to be off a little bit (obviously). Now my car won't start back up and I don't know if this is the cause of it.

1) since both the cam marks & crank mark weren't in perfect harmony with each other, is it more crucial to line up one more so than the other?
2) Could being off by a tooth or two cause the engine to not start?
3) Could being off by a tooth or two cause damage, i.e. To the pistons/valves?

It just chugs and chugs like it wants to start but won't catch.
Added (1). I should mention that I put a screwdriver in the #1 piston, observed it at its highest position when hand-turning the crank and assumed this to be top-dead-center.

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