Marathon'd the last half of SoTC which made me discover it's also known as the "not fun, always annoying" half.
I mean I love SoTC and somehow I don't remember having any issues in my multiple runs on PS2, and 1-9 here were all good stuff. But 10-16 are filled with non-stop encounters where you either have lots of sitting and waiting, have to deal with awful camera situations (like shooting a bow while riding a horse), the fucked up new physics in this version (#15 is so bullshit now), and then the messed up camera and input lag (final boss). They're still cool encounters and I still love the game to death, but where Ico feels flawless, even today; SoTC feels flawed in that between the two SoTC is the one that keeps reminding me it's a video game when controller-throwing bs occurs and bosses that take forever. Plus Ico has a better ending.
So yeah, Ico > SoTC
SoTC looks amazing though in this collection. Riding around the overworld with gorgeous everything and nice motion blur it looks better than 90% of PS3/X360 games this gen. Even by modern standards this version of Ico/SoTC are some of the best looking visuals in gaming. Very impressed by the effort that went into the remaster, though I'm sure it delayed Last Guardian a year while Ueda spent all his time working with Bluepoint on making it so.
Will replay both again at some point. Ico for the new game+ stuff and rest of the trophies, SoTC for doing a run in slideshow 3d just for the 3d experience.