Which is better VS 4-4-2 classic? 4-5-1 V or 4-4-2 Narrow Diamond?

I have NOT had success with 4-5-1 V but have hardly lost a game using Narrow Diamond.

I ask this because all of the advice says to go with the 4-5-1 V.

I play VS a 4-4-1-1 tonight and am thinking of the Narrow diamond as it is almost a 4-4-2, but most advice says to go with the 4-5-1 V.

Anyone?