It's either #1 or #2. Your #3 is wrong.
I'd say yes because Zapdos has really high ATT base stats and either 10 or 12 in attack wouldn't be that much of a big deal (even if some purists won't agree ;-) ).
Moreover, if it's your favourite one and you're not able to get any other soon, just do it. You just need 1 CTM and you'll get an awesome electric attacker.