The width of the fingerboard is important but not the only variable in the ease-of-playing equation. A good setup, as mention above, is critical to playability.

Another variable is the radius of the fretboard – how curved it is from bass side to treble side. In general the more curved the fretboard the easier it is easier to play chords, particularly barre chords. Classical fretboards as usually flat, Martin flattops usually have a relatively flat radius of 16" or more, Gibson flattops usually have a rounder 12" radius, and a Fender Strat has a radius of 7 1/2 ".   

There's no reason someone couldn't build a flattop with an electric-style neck, though a transplanting Fender necks probably wouldn't work because there is not enough string break angle over the nut. A Les Paul style neck might work better.
- Phil