I've seen some speedrun videos online of players playing a new character and showing how fast it takes to get a Bare naked rank 1/phys 1 noob character up to 20. with the right set up and in a group it literally takes about 15 minutes from the time you get out of the starting cutscenes to the time you hit rank 10. Then another hour at the most to hit rank 20. This feat in Final Fantasy XI took approximately 10 hours of dedicated play. And most players didn't head to Valkurm til they had atleast 2 jobs to 10 or 15 and had time to farm the gear they needed to perform a job.
FFXII it took atleast 8 hours of dedicated play to hit the 20's if you were grinding ahead of the story (I know, I faught Alarunes in the desert till 30 with just Vaan and Penelo.)
FFIX took about 6 hours IIRC.
FFVII you hit 20 about the time you left Midgar which was about 5-8 hours.
ffVI I can't even remember how long it took to get to 20.
I feel the first few ranks are too quick. They fly by like a cannonball leaving you feeling like there wasn't as big an accomplishment getting to what would normally be a huge milemarker. Rank 20 is about 1/3rd of the way to cap
But then theres a sudden change in leveling speed. The amount of time it takes to get from 20-50 is three times per level in some cases to what it was for 1-20.
I'm just concerned that the speed it takes to go from 20 then all of a sudden it all tapering off all at once will result in burnout for a lot of players.