Which of these 5 first-class airline seats is the most luxurious?

I'm interested in booking seats like lie-flat beds and gourmet meals on these 5 airlines.

• Option 1: Private suites with glass doors
• Option 2: Lie-flat beds with personalized entertainment systems
• Option 3: Gourmet meals served by a dedicated chef
• Option 4: Priority check-in and boarding for all passengers