I would want to meet the Buddha. Then I could obtain advice to help me become enlightened. I would suggest Jesus or Moses, but they seem more keen on teaching virtues than giving advice to "god-hood." Or, perhaps I would just go straight to meeting the creator, be it God or by whatever other name he/she/it is called. There is really not much point in trying to meet anyone else. After all, why try to learn the teachings of one person when you can learn from people who knows everything?