1-It is not worth comparing FL to other games. Each game is different and meant to be enjoyed in different way. So some are based on Cap ships, some are based on Fighters.
2-It is useless to compare FL with RL. In WWI the queens of the seas were Dreadnoughts. In WWII Carriers with Planes, now.......I would say still Carriers, but I think in the future it will be submarines with hundreds of Cruiser missiles, and remote controlled planes
3-Guys let's be honest. Many people like to fligh Caps. Only after flying a cap in FL you discover how useless they are against a bunch of bombers.