I hated God of War. Absolutely hated it. It was a pretty but uneventful game that I felt offered a Legacy of Kain: Soul Reaver styled experience (lots of puzzles but no feeling of accomplishment) and a character I didn't really feel for. I'd given up on the series with the first game. I kept hearing what people were saying about GoW 3 so I wound up buying it a year later for really cheap. Since I got GoW3 in HD, I figured I'd complete the trilogy and get the whole HD Collection.
I skipped GoW1 (because it sucks) and went straight to GoW2. The game was goddam amazing. By the time I finished, I was in awe. Then, I went to GoW3 with the idea that there was no way it would impress like GoW2 could. Once again, I was blown away!
Anyway, that's my history with God of War. I later got both of the portable games (and yet, somehow, I'm not hyped at all for Ascension. Guess I'll be blown away, again.) and Ghost of Sparta is pretty amazing, too. But, the thread is about the best overall edition and, with God of War, every game is easily better than the last. I'm going with God of War 3!