Looks like both phone are great (as much as it can be) with night shots. From your photos, I can see that both phone have aperture wide open, taking stationary shot the shutter speed is probably low. This is the reason why people are getting focus issues in low light. Ois does help but it does have limitation. With such small phone sensor there is only so much it can do.
With the banding, I also have the same problem with my 3,000 dollars Sony Nex7 mirror less rigs. Probably the shutter speed is so low it pickups low frequencies wave from the fluorescent.