LCD is crisper, *if* running at the panel's native resolution. For 1024x768 (about what Amiga graphic cards like the PIV/CV/CV3D can handle and still remain somewhat snappy), you would need a 15" LCD. I suppose you could squeeze a 1280x1024 resolution WB, and use a 17" or 19" LCD.
CRT offers much better resolution scaling, which is why I prefer to use them with the classics. LCD smearing is also much worse at non-native resolution, another reason I like CRTs for gaming/watching demos on the classics. Properly set up, a good aperture grille CRT (Eizo, Lacie, etc) can have an absolutely STUNNING picture. Problem is, you need to find a good one, then potentially spend hours adjusting it to perfection. :/ Note that any screen much larger than 17" will make your games look blocky, also CRT flicker is more noticeable on larger screens.
A lot of this is subjective, best thing is to try both and let your eyes decide.