Transformers Collection Megatron vs Encore Megatron

I find myself torn trying to figure out which one i should get, so i have a few questions about the two. (The only thing i actually know about them is that megatron himself is made from same die-cast parts and all that noise)
Usually the TFC reissue costs more than the Encore one, but is that just because of the mace that comes with it?
Does one shoot bullets and the other not?
Does one version seem to have a better history of tighter joints than the other, accesories for gun mode clip on better, etc.?
Usually the TFC reissue costs more than the Encore one, but is that just because of the mace that comes with it?
Does one shoot bullets and the other not?
Does one version seem to have a better history of tighter joints than the other, accesories for gun mode clip on better, etc.?