Depends how long you'll spend eating breakfast. If it's a 9:00AM opening for Epcot, and you get there before your 8:10 ADR to get seated right away, do you think you'll be done by 9:00 when the RD crowd starts arriving? If so, I'd do FEA first, then FP Soarin'. If you think you'll linger at breakfast, then you're going to be behind the crowd regardless of which attraction you go to.