The one which says... "it`s free for a limited time" or maybe sometimes... "it`s now down to 99cents"
It depends who wrote the user review. If the guy can't even spell review, I usually ignore it. Edit: lol, you had a mod fix it.
User Reviews (basically forum discussion) was my choice. Having a big name site review a game is great to get a game in front of my face. Maybe something I hadn't heard of before or something I may have not even made an effort to research. But if it makes a front page, with graphics, it has a potential to make me stop and say, "Hey! This sounds interesting. Let me read the reviews and find out more in the forums."
I usually buy the game once I see that TheBeastlyNinja has given it a good review. Haha tboh did u already say that^^
User reviews and Youtube reviews. I also pay particular attention to certain users because I think they have the same taste as me when it comes to games.
I go for reputed sites review, like "rockpapershotgun". Simple interest calculator calculation rates mortgage compound high interest savings account