I would also recommend passive 3D (polarized 3d) for the following reasons:
a) Glasses are extremely lightweight.
b) No charging
c) No sync issues
d) Very cheap
If you are a person like me who wears glasses, passive is a best option because wearing heavier Active 3D glasses is painful.
All the hype about "half frame display" is not relevant and overstated. But this is not true as the human eye cannot perceive the difference. You should check the whether you feel the difference by visiting a multi-brand showroom.
However, passive 3D is available with LED TVs only and that too a few models only. LG is promoting passive 3D in a big way and have been fairly successful. With their success rate, others are joining the club.
In general, I do not like 3D. But that is me.