I actually kind of like Disneyland Paris' Phantom Manor/Big Thunder Mountain. It's got extra scenes that aren't in the Disneyland Anaheim one.
I like more Haunted Mansion for the sense of story, while the good story of Phantom Manor is only in the land's background, you need to find of it, and the scenes don't have a particular story, some are just there, because.
And of course Grim Grinning Ghosts at full in Haunted Mansion. Although the background eerie music for Phantom Manor is superb.
Don't get me wrong, I also love Phantom Manor, but I like a little more HM, I love they are different aswell.
Big Thunder Mountain, the placement in Paris is unbeatable (an island!), but the background history of Anaheim is awesome, that's why I love to see scenes like Rainbow Caverns from Rainbow Caverns Mine Train and the Rainbow Ridge buildings from Mine Train through Natures Wonderland staying in the different version's of the ride.
I wen't at night and it felt awesome.
Big Thunder Mountain in Paris is also really fun, and the last part when you go below the lake in total darkness and at max speed is awesome.
So yeah, I love both parks, even if I like Anaheim a little more.