Both are almost identical. Thou, I prefer the no flash photo. Only because the pedestrian street sign reflecting the flash light back, it's focusing the attention away from the neon sign.
It seems obvious and in some ways it’s intuitive, but until I actually said it, I never really got it. To capture a good photo, you need to capture the light.
The light is always the subject.
It’s hard to get a beautiful color photo without good light. If you follow the light, like in many ways in life, you'll find God, you'll find Jesus Christ and maybe you’ll get a nice photo too.
Follow the light, worship the Creator, not the creation.
Likewise the Spirit also helpeth our infirmities: for we know not what we should pray for as we ought: but the Spirit itself maketh intercession for us with groanings which cannot be uttered. - Romans 8:26