Good LeChuck was interesting. For me, the demon LeChuck was just boring because I didn't like the direction his character took after MI2. Ghost was alright (it was his original incarnation after all, and SoMI:SE did a good job with his sprite I think). Let's all pretend stone-LeChuck didn't exist!
We'll drink beyond the boundaries of sense
We'll drink 'til we start to see lovely pink elephants
Inside our heads, inside our beds, inside the threads of our pyjama legs
So don't shoot 'til you see the reds of our eyes
And an army of elephants marching behind
From the day I was born 'til the night I will die
All my lovers will be pink and elephantine!