I'll take another look.

The issue is that ratings on ps3trophies.org varie over time and they have different ways to rate games.

The page of a game will give a game difficulty rating based on the average vote( or mean in mathematical terms).

Then they have another page that ranks games based on median values :

http://www.ps3trophies.org/forum/games/93140-collected-trophy-difficulty-ratings.html

I'm not sure which is best.

Ideally I would tend to say median value as the final number is less skewed if one lone dude votes a game 1 or 10.

The other issue is that it seems that after a while they stop updating the difficulty rating in the poll .

One example :

Dungeon defenders is rated at 8.4 difficulty.

But if you do the maths the average vote is actually 7.95, I can't explain the difference except maybe more people voted after they computed the average or in their formula they do some weird stuff like removing the top and worse vote...( would only give 8.05 so it isn't that).

And while the average is 7.95, the median is actually 9.0. ( the thread I listed lists the average at 8.03 instead of my 7.95 but it was last updated on 1/20 so most likely another person voted in between).

So anyway my point is that maybe it woudn't be a bad idea to move from using the average ratings to use the mean ratings instead ( especially as most games difficulty threads always have a few trolls that vote the game totally differently from everyone else).

PS : NGS2 is the highest rated game with a median of 10 and a mean of 9.31

Yeah, that's according to the difficulty threads they have, and they do make a point that how much time is required to platinum a game should have no effect on the difficulty rating you give. However, it's been pointed out here (the majority seemed to believe so, I think) that they should have an effect on the platinum rating they have, considering some games can take upwards of like 500+ hours to get the platinum (500+ hours include you actually being in control that whole time; some games include Gran Turismo 5, WKC1 and 2, Star Ocean 4, etc; on the opposite end, Mortal Kombat is a long platinum, but the most time consuming trophy doesn't require you to be at the controller).

PS - And yes, I know there are many trolls on the site who low/high-ball a game's score (voting a 1 or 10) on purpose.

@Ail
Dragon's Dogma looks incredible based on the trailer. Hope the story will be as good as the action & visuals. Dogma is on my watch list as well as Resident Evil Operation Raccoon City. Keeping fingers crossed that they both turn out great.

That's why I would advise to use the median value for difficulty instead of the average as it tends to lower the effect of outliers votes.

And yes I agree with you the time it takes to plat a game should be taken into account, but in all fairness even if they say it should not have an impact, you can see with the votes on most games that people take it into account...

At this rhythm i'm going to pulverize my resolution to read 52 novels in 2012...
It's not the end of January and I am already up to 11 novels read.. These last two weeks I have actually spent more time reading than gaming. No clue why I'm just in the mood to read and now that I have my whole music collection on amazon cloud player it's really nice to read on my kindle fire and listen to my music at the same time with the same device...

So from the games I have and games Im waiting to come looks like I have some easy platinums(Assasins creed 2, uncharted 3 and good of war collection) and some hard (Final Fantasy 13 and Star Ocean 4 International), the retail games on the PSN have platinums right?

Got my 50th platinum last night with Crysis, fun game :)

You can read at the same time as listening to music and not get mind-fucked by that?  That reminds me of trying to read textbooks for college when the TV was on and retaining none of it.