I think GOW will probably sell more, but Horizon has done close to 8 million so it will be close.
GOW hast the potential to get close to 10 million especially with how well PS4 is doing.

It will probably come down to how well GOW is received, if people really love it then sales could boom. If people say its okay then it may only do 5 million.

God of War, no question. It’s an established franchise, and this latest one is easily going to be the best selling.

I'd say Horizon. I have doubts God of War will even get to the ~8m Horizon sold so far at all.

I'm gonna go with Horizon just because 7.6 million in a year for any game is huge

If it reviews in the 90's I can see this selling over 10m.

There are a lot of xbox converts on ps4 this gen who wouldn't have bought gow3.

Sony might however bundle horizon this year so that would make it hard to catch.

I said GOW because that's the one I defiantly want. But it may be close, in all honestly if both do very well none is really losing...

I think it might be a close call; HZD really has surprised everyone with it's strong sales! But it seems like established franchises is doing quite well this gen on PS4 (just look at Uncharted 4), so GoW might do 8-10m - but will it THIS year? Dunno.

I'll say that if the metacritic ends up OVER 90 it's a 50/50 chance GoW will outsell HZD 1st year, if it's OVER 95 it'll definitely outsell HZD, and ut the score is UNDER 90 HZD will sell the the most

It's hard to say at this stage, but I would like to see the new GOW to be doing better.

God of War

I feel like this will be close but GoW will take the cake