I know it's personal preference
My Custom 7. Its the only 7 string I have ever played that is comfortable. Ibanez are too thin, Schecter is too round.
I've only played 4-5 guitars (ibanez, schecter, carvin) and while different I can't say I find any of them uncomfortable. I never understood people whining about necks. Maybe I have big hands.
Some people are just picky and some people genuinely get problems with hand cramping with necks that are too thick/too thin/not thin enough/not thick enough etc.
Nothing hard to understand about that.