I've lived in, in order, Mid-levels, Discovery Bay, Wan Chai, Kennedy Town, and Tung Chung now. I like Tung Chung the best. DB is not what it was pre-Covid for expat life. I think it had a surge in expats right up until Covid and when the measures dragged on, people left. All neighborhoods had their good points, but Kennedy Town didn't offer much other than good restaurants. When the air sucks in HK, it sucks everywhere, it's not like it is blue skies in DB and fumigation time in TC.
My kids walk to school too in TC, rents have stabilized, I'll be on six years at the same rate.