Wrong place to ask really. 99% of the folk on here have a Neo. Or Neo V. So they will be biased.
Suggest you use a more general area so the Samsung users can contribute.
Neither phone has been a particularly stellar seller, and the Xperia U in the same price bracket is due out in 6 weeks.
In any case, you will get such a wide variety of highly subjective opinions that you will not gain anything that will help you.
Make your own mind up based on what you need...
Moto G 16GB (Good noddy phone for Mrs Ash)
Sony Xperia ZL - Actually better than the Z for me - and LOUD! (daughter 1)
LG G2 d802 - rooted Stock 80220C with Bloat removed (daughter 2)
Sony Xperia Z2 - rooted stock (me)
iPAD 2 - was good in 2011, now seems a bit pants!