Right... I here an awful lot of people, as I would imagine most of you do, saying that kronos absolutely pwns Odin/Thor. Alas my friends this is not really the case. Like most cases in AOM it is not the civ that is at fault it is the strat used by the player. So heres a strat that I have got 1770+ (again nothing to shout about but just giving you a little idea) with.
Basically it is... *drum roll please* a loki style rush, what, what it is good trust me. This strat absolutely roxxx and I have not lost vs a kronos player using it. Do your normal build aiming for a 5 min classic through heimdall. At about 3 mins (when the kronos player is about to rush you and is moving his oracles together and so has no los of your vils) move your gold and wood econ to a safe place away from your main base (can be hard on savannah etc but be innovative.) you should be hunting somewhere else anyway. Fwd build your temple and play like you were loki rushing, spam hersir build 2-3 rax and get about 6-8 hersir and your ein and march straight up to his TC, undermine it and take it down in about 10-20 secs. Dealt with. Now you should have been spammin a few RC to hit his vils who are uber slow and seeing as his army is in your base doing... no damage to your far away econ (vils go to hurdables next to tc) you should kill a lot of his vils. So taking stock, best case scenario he has no TC and no vils to rebuild = gg. Worst case is that you take down his TC (I almost guarantee this, if it dosent you get your money back, guaranteed.) From here you have the, IMO, best combo to take atl down hersir/RC/myth. With a bit of micro this really does a number on atl and with his crap econ you really should pwn those silly kronos rushers.
The main criteria for success is surprise, whatever you do dont let him see you fwd building or moving your econ or your a bit buggered.
Thats about it give it a whirl and I hope it works as well for you as it has for me