I have 4 sources i used and it works pretty well for me.
I like Metacritic for some numbers, i really like to see when a critics give it a good score but regular people rate it much lower.
i like that i can read a bunch of different reviews very quickly and go to that site if i want to read more.
I then go to Steam as i really like the System they use and that you can click and read real players opinions.
Then i come here and Neogaf and read the threads about the game. Most of the times its the same people in those threads and they give me the best feedback.
With those 4 i get a good sense if i will like the game.
I never watch Youtube reviews, i want to read (at my own pace) most of the time, not watch video's.