Shirley you don't HAVE to buy with all those guys. If you want to order from out of country or not it's your decision right?
Basically what I was getting at is the main differences between the two are aesthetics and ergonomics. Neither is definitively leaps and bounds better than the other. You need to chose which one best suits you. I'm assuming you've found some reviews on them and neither of them are inherently shitty? If so neither will be a bad purchase.
They both have very similar mag releases but the selector switches are quite different, which do you prefer?
G36 has a fixed pistol grip, the AK grip can be changed to suit your preference.
The G36 can be converted to take STANAG mags the AK not so much.
Is one heavier than the other? do you like that?
Have you considered batteries? does one hold a larger battery allowing you to play longer without switching?
Which one is best suited to the gear you plan to get/have?
Why don't you just go into your local airsoft store or to a game and see them in person Shoulder them both see which one feels best to you? That should help you decide even if it's not the exact models you're looking at. Or maybe go to GI and see them before you buy.