I don't like the Ibanez necks, people are under the assumption that they are great because they're so thin (17mm nowadays), which is not the case. Well, some people like them.
I like my electric necks half way; about 20mm thick with a 12" radius. Fret size is also an important factor to consider.
I also play classical and I couldn't ask for a more comfortable neck for that kind of stuff, it's not just chunky, it's morbidly obese!