What does everyone think about First Click Attribution?

[#1]

Hi everyone,

I like the first click attribution model for AdWords as I think if you paid for a customer who clicked on one of your ads then later came through an organic listing (for example) and converted - that conversion should be credited to your AdWords campaigns.

What does everyone else think?

Should I be using Last Click? Can you guys give me your thoughts on what is the best model to choose? I've read so much about this topic but I still can't make up my mind and feel swayed towards First Click.

Thanks!

Laura

[#2]

Similar to basketball, my view is that all proceedings assist, but the final "shot" (click) rules: so, I stick with  last click attribution.