I think having a Personal Chef would free up a lot of time to do other things. I could be working out while they toil in the kitchen, but I see the merits of having a Personal Trainer too. It would be so much more motivating to have someone hold me accountable for my physical health.
Ideally, it would be great to have the chef for about six months and then the trainer for the following six months.
A girl can dream, right?