(adsbygoogle = window.adsbygoogle || []).push({}); So, what do you think is the hardest platinum ?

I think it's - Dark Souls, Demons Souls, GT5

Hardest Platinum game is Lost Planet 2.. here is a trophy requirement must have to beat the world record to get ranked 1. not more than 30 users have this Platinum in the world.

I would say Lost Planet 2, too. Warhawk isn't THAT hard, it's just extremly time consuming. Fight Night Round 4 has nothing to do with skill, just luck to find someone who share all three belts.
Ninja Gaiden Sigma 2 is maybe the hardest game if you ignore the World Record in LP2. But that's just my opinion^^

Demon Souls isn't that bad if you're careful and Dark Souls is so much easier than Demon Souls. The most difficult has to be; Star Ocean, Fight Night Round 4, Ninja Gaiden Sigma 2, Lost Planet 2 and the two Street Fighter Games. The only trophy on GT5 that's hard is the GT-R Official Record, the rest can be achieved with other peoples save games. WipeoutHD is a little bit easier since the DLC came out, it has a few better ships so you might not even need to barrel roll round Zico anymore.

Ninja Gaiden ∑ 2 I say is hardest by far!!!

So far my respect goes most to Julian who has a number of difficult plats. He's got most of my hardest ones and harder ones still, so props! Here's my platinums designated either "ultra rare" or "very rare", but there's certainly harder ones out there. I got this info off of PSNProfiles.com.

1. Sports Champions (1.33% Ultra rare)
   
2. UFC Undisputed 2010 (1.6% Ultra rare)
   
3. Killzone 2 (6.46% Very rare)
   
4. Virtua Tennis 4 (6.8% Very rare)
   
5. Driver: San Francisco (6.84% Very rare)
   
6. Skate 2 (8.33% Very rare)
   
7. Mirror's Edge (8.47% Very rare)
   
8. Skate 3 (8.47% Very rare)
   
9. Dirt 3 (9.12% Very rare)
   
10. LittleBigPlanet (9.6% Very rare)
    
11. Red Dead Redemption (9.9% Very rare)
    

I would be interested to see Julian's ultra and very rare plats.

my hardest plat was definitely Mirrors edge, you only have 2 screw up twice in the speedruns/time trials untll you have to restart the whole chapter again

to me is super street fighter IV and GTA IV.

Killzone 2. you need to be #1 in the weekly leaderboards and finish the campaign on elite.

i think fight night is the hardest although i never play that game. the championship belt title, you have to beat the reigning champ to get the trophy or something like that.