my favorite platinum was dead space 2 because to get the hardest trophy you had to complete the game only using 3 saves and that made the game more thrilling and suspenseful because what didn't kill you on normal, killed you instanly on zealot.
Lego Rock Band
Green Day Rock Band
Guitar Hero Smash Hits
Guitar Hero Van Halen
Lost Planet 2
This are pure skill based games, so their is no chance to get this trophies only by time or with a good guide... I will earn every platinum of this 5 =)
W@W