CK,
Just popped into this thread so not sure if you have got PPL or are a stude?
If you are neither I would go for the simulator as it has to be good fun value.
If you are a student I would convert it into more flying vouchers for your training or take a raincheck to be cashed in after you get your PPL.
If you have your PPL and just want a blast go for either the twin hour or the simulator whatever takes your fancy.
FD