I hate almost all remakes, which are usually remade for no good reason other than to take money away from non-discerning idiots.
Good remake - Werner Herzog's remake of Nosferatu. Murnau's original was a silent, so plenty of room to do something different and interesting.
Bad remakes - too many to mention here's some examples.
The Italian Job - the original was a bit crap save for the Mini set piece, remake is even worse.
Wicker Man - Original was perfect in it's own quirky way. Haven't watched the remake but haven't heard a single good word said about it.