Question [Q] Simply... HTC One Dual Sim or LG Google Nexus 5 ??

Hello Experts,
Although, I'm HTC fan, and also liking Dual Sim phones, since I used a local brand i.e. QMobile. But since I read reviews about LG's Google Nexus 5, I've started thinking about it. As Nexus 7 doesn't fall in Cell Phone category, so we are limited to Nexus 5 if only cell phone category is concerned ( I mean, a handy cell phone).

HTC One Dual Sim or LG Google Nexus 5 ??

I found two major differences between these:
Nexus have 4G and 8 MP Camera
HTC got dual sim, and its very helpful in case you have two sims from different service providers and working in one set.

So please help me to decide between these two cell phones: