OBBVVVSSS its a park ski dummy, neither are very succesful in pow! just gotta be a good rider...
go for the alpha 1 if your going to be more park oriented(jumps especially) and if your not going to be riding really hard snow conditions all the time. T-hall if you want a slightly softer ski for rails, and the camber for getting an edge into hard snow. both are amazing skis, alpha 1 i'd say is the more advanced rider ski, you wont be dissapointed in either.