I'm only at an early stage in both Ever 17 and Kara no Shōjo. Estimates put their length at 30 - 50 hours for Ever 17 and 10 - 30 hours for Kara no Shōjo.
I'm enjoying Ever 17, it can be pretty goofy at times but overall it's strong.
Dragons... urgh... Never seen the fascination with them, at least the Western archytypes of them, then again most fantasy cliches leave me cold.
Dragons are powerful, the obsession is some "hell yes I beat a dragon" thing I assume.
Thats another thing I like about these VNs, they seem less cliche and more original.
Ancient evil wanting to destroy the world, just seems dull, and I dont care. A story about people just trying to be happy before they die, or someone trying to adapt to living with a disability. Much more interesting, and the fact its more real than fighting dragons or some crap. Makes it even better.
Allthough if I feel like it, there are plenty of VNs handling weird situations, like say no uta, ever 17, planetarian, etc.