Favourite moves/powerful moves

[gameshark]

post you most powerfull move and/or your favourite. id like to know some strong moves cos im gearing up to beat the elite 4 with a milktank (dont ask).

my favourite is volt tackle and strongest is giga drain.

Moves milktank has:
Zen headbutt
Body slam
Milkdrink
Thunder

please post what you think milktank should get as well!