Yeah, using a guide definitely makes a game's trophies easier, as in the case with games with a lot of collectibles (I think it would probably take like 20-30 more hours for Wheelman without using a map for the jumps and cat statues, for example). Also, sometimes boosting is the only option in some games with online trophies (i.e. the online Frodo trophy in LotR).
I think time should definitely be a factor in a game's difficulty rating. Take a look at something like Trivial Pursuit and Cross Edge, for examples. Trivial Pursuit is an easy game that only takes like 5-6 hours to plat (if you use Wikipedia/Google to look up the answers). Since Cross Edge doesn't have any difficulty-related trophies, the whole game can be done on Easy and it's not exactly hard to finish, but it can take anywhere from 100-150 hours to get the plat.
I ask this question, then, in regards to time. Would you rate White Knight Chronicles a 1-2 star game since it is said to be just a grind, and not difficult, while considering that most people right now are saying it might take anywhere from like 600 hours to even 1,000 hours to get the plat?
