omega44-xt
Gear up ...
Z3 Compact is a great choice. In terms of dimensions it's noticably smaller than my Nexus 4 (i checked it's dummy model)I wouldn't mind a Samsung flagship too. Only mistake they made was not experimenting with hardware designs and not getting rid of bloat wares. For me it's a question of stock android vs custom skin experience. Moto x
/Nexus for stock android & with custom skinned versions I would also have Samsung into consideration as it's not much diff from a Sony or htc.
Anyway how about a z3 compact?? Its 4g with exceptional battery life.